Patent US2969999A successfully refreshed from Google Patents.
US2969999A
Expired / Lapsed
US
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Door latch
Assignee: DENT HARDWARE Co
•
Filing: 1956-05-28
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Granted: 1961-01-31
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Expires: 1976-05-28
Abstract
No abstract record available.
Inventors
- 👤 William B Herman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:44
CPC Classifications
E; E05; E05C; E05C1/00; E05C1/08; E05C1/12; Y; Y10; Y10S; Y10S292/00; Y10S292/65; Y10S292/71; Y10T; Y10T292/00; Y10T292/08; Y10T292/0908; Y10T292/096; Y10T292/0969; Y10T292/097; Y10T292/0972; Y10T292/0994; Y10T292/68; Y10T292/705
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-31 | 1964-08-01 | 1965-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-31 | 1968-08-01 | 1969-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-31 | 1972-08-01 | 1973-01-31 | $7700.00 | Window Closed / Lapsed |