Granted Patent
Utility
Small
US 6,422,273
· Confirmation No. 5875
EVACUATION SYSTEM FILTER
Inventor:
Michael C. Campbell
Patented Case
View Patent ↗
|
⬇ PDF
|
Code | Description | Pages | ||
|---|---|---|---|---|---|
| 2016-09-02 | N570 |
Communication - Re: Power of Attorney (PTOL-308) | 1 | View | |
| 2016-09-02 | N570 |
Communication - Re: Power of Attorney (PTOL-308) | 1 | View | |
| 2016-08-26 | PA.. |
Power of Attorney | 1 | View | |
| 2016-08-26 | R3.73 |
Assignee showing of ownership per 37 CFR 3.73 | 1 | View | |
| 2016-08-26 | N417 |
Electronic Filing System Acknowledgment Receipt | 2 | View | |
| 2001-11-09 | TRNA |
Transmittal of New Application | 3 | View | |
| 2001-11-09 | SPEC |
Specification | 12 | View | |
| 2001-11-09 | CLM |
Claims | 5 | View | |
| 2001-11-09 | ABST |
Abstract | 1 | View | |
| 2001-11-09 | DRW |
Drawings-only black and white line drawings | 1 | View | |
| 2001-11-09 | OATH |
Oath or Declaration filed | 2 | View |
Inventors
Michael C. Campbell
Virginia Beach, VA
Attorneys & Agents of Record
Classification
USPC
141/65
B09B3/35
B65B69/00
B09B2101/02
B09B3/00
Prosecution
- Examiner
- DOUGLAS, STEVEN O
- Art Unit
- 3751
- Customer No.
- 23460
- Docket No.
- 725890
- Confirmation No.
- 5875
Patent Term Adjustment
-68days
No related applications found.
ACCUFORM MANUFACTURING, INC.,
BASIC CONCEPTS, INCORPORATED,
CHECKERS INDUSTRIAL PRODUCTS, LLC,
EAGLE MANUFACTURING COMPANY,
GROUND PROTECTION, LLC,
JUSTRITE MANUFACTURING COMPANY, L.L.C.,
SAFETYCAL HOLDINGS, INC.,
SUPERIOR MANUFACTURING GROUP, INC.
from
CITIZENS BANK, N.A.
RELEASE OF SECURITY INTEREST RECORDED AT REEL/FRAME 049673/0062
Recorded 2025-10-01
BASIC CONCEPTS, INCORPORATED,
JUSTRITE MANUFACTURING COMPANY, L.L.C,
CHECKERS INDUSTRIAL PRODUCTS, LLC,
ACCUFORM MANUFACTURING, INC.,
SAFETYCAL HOLDINGS, INC.,
SUPERIOR MANUFACTURING GROUP, INC.,
GROUND PROTECTION, LLC,
EAGLE MANUFACTURING COMPANY
from
CITIZENS BANK, N.A.
RELEASE OF SECURITY INTEREST
Recorded 2024-08-16
from
ACCUFORM MANUFACTURING, INC.,
BASIC CONCEPTS, INCORPORATED,
CHECKERS INDUSTRIAL PRODUCTS, LLC,
EAGLE MANUFACTURING COMPANY,
GROUND PROTECTION, LLC,
JUSTRITE MANUFACTURING COMPANY, L.L.C.,
SAFETYCAL HOLDINGS, INC.,
SUPERIOR MANUFACTURING GROUP, INC.
SECURITY INTEREST
Recorded 2019-07-03
from
ACCUFORM MANUFACTURING, INC.,
BASIC CONCEPTS, INCORPORATED,
CHECKERS INDUSTRIAL PRODUCTS, LLC,
EAGLE MANUFACTURING COMPANY,
GROUND PROTECTION, LLC,
JUSTRITE MANUFACTURING COMPANY, L.L.C.,
SAFETYCAL HOLDINGS, INC.,
SUPERIOR MANUFACTURING GROUP, INC.
SECURITY INTEREST
Recorded 2019-07-03
from
ALLY BANK
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS
Recorded 2019-07-01
from
CAMPBELL, MICHAEL
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2016-05-19
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this application's details
Quick Facts
- Patent No.
- US 6,422,273
- App. No.
- 09/986,730
- Filed
- 2001-11-09
- Granted
- 2002-07-23
- Examiner
- DOUGLAS, STEVEN O
- Art Unit
- 3751
- PTA
- -68 days
External Links