US3004420A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door latch and lock
Assignee: Steelcase Inc
•
Filing: 1959-02-09
•
Granted: 1961-10-17
•
Expires: 1979-02-09
Abstract
No abstract record available.
Inventors
- 👤 Pipe John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:53
CPC Classifications
E; E05; E05C; E05C9/00; E05C9/02; Y; Y10; Y10S; Y10S292/00; Y10S292/68; Y10T; Y10T292/00; Y10T292/08; Y10T292/0801; Y10T292/0834; Y10T292/0836; Y10T292/096; Y10T292/1006; Y10T292/1007; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5097; Y10T70/5111; Y10T70/5115; Y10T70/5155; Y10T70/5199; Y10T70/5246; Y10T70/5248; Y10T70/527; Y10T70/5296; Y10T70/5319
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1335375A
Cited
US1449187A
Cited
US1441336A
Cited
FR573955A
Cited
US1970267A
Cited
GB358586A
Cited
US2033806A
Cited
US2844020A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-16 | 1965-04-17 | 1965-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-16 | 1969-04-17 | 1969-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-16 | 1973-04-17 | 1973-10-17 | $7700.00 | Window Closed / Lapsed |