Patent US2916904A successfully refreshed from Google Patents.
US2916904A
Expired / Lapsed
US
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Locking means for casing enclosed mechanisms
Assignee: Federal Electric Products Co
•
Filing: 1952-04-10
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Granted: 1959-12-15
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Expires: 1972-04-10
Abstract
No abstract record available.
Inventors
- 👤 Paul M Christensen
- 👤 Cohen Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:02
CPC Classifications
E; E05; E05C; E05C3/00; E05C3/12; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0911; Y10T292/0926; Y10T292/0928; Y10T292/0934; Y10T292/0945; Y10T292/0951; Y10T292/0954; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5246; Y10T70/5296; Y10T70/5345; Y10T70/5354; Y10T70/5372; Y10T70/5385; Y10T70/5389; Y10T70/55; Y10T70/5611; Y10T70/5757; Y10T70/5765; Y10T70/577; Y10T70/5774; Y10T70/5779
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US260693A
Cited
US618091A
Cited
US1079351A
Cited
US1131752A
Cited
US1126700A
Cited
US1293911A
Cited
US1553446A
Cited
US1642612A
Cited
US1681850A
Cited
US1719272A
Cited
US1885713A
Cited
US2121620A
Cited
US2154236A
Cited
US2272825A
Cited
US2542332A
Cited
US2760021A
Cited
US2698361A
Cited
US2695934A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-14 | 1963-06-15 | 1963-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-14 | 1967-06-15 | 1967-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-14 | 1971-06-15 | 1971-12-15 | $7700.00 | Window Closed / Lapsed |