Granted Patent
Utility
US 6,509,118 · App. 09/423,026
Valve-regulated lead-acid cells and batteries and separators used in such cells and batteries
Inventors:
Detchko Pavlov, Stefan Ivanov Ruevski, Veselin Bozhidarov Naidenov, Vera V. Mircheva, Galia Angelova Petkova, Mitko Kolev Dimitrov, Temelaki Vasilev Rogachev, Mariana Hristova Cherneva-Vasileva
Patented Case
View Patent ↗
Granted: Jan 21, 2003
Filed: Jan 18, 2000
Inventors
Detchko Pavlov
Stefan Ivanov Ruevski
Veselin Bozhidarov Naidenov
Vera V. Mircheva
Galia Angelova Petkova
Mitko Kolev Dimitrov
Temelaki Vasilev Rogachev
Mariana Hristova Cherneva-Vasileva
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.