US3439948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door latch assembly
Assignee: Overhead Door Corp
•
Filing: 1967-10-16
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Granted: 1969-04-22
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Expires: 1987-10-16
Abstract
No abstract record available.
Inventors
- 👤 Vernon O Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:22
CPC Classifications
E; E05; E05B; E05B83/00; E05B83/16; E05B63/00; E05B63/0065; E05B63/0069; E05B65/00; E05B65/0021; E05B83/02; E05B83/12; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/1043; Y10T292/1044; Y10T292/1045; Y10T292/1047
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2194408A
Cited
US2153102A
Cited
US2727774A
Cited
US3023804A
Cited
US3236551A
Cited
US3103805A
Cited
US3170722A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-21 | 1972-10-21 | 1973-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-21 | 1976-10-21 | 1977-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-21 | 1980-10-21 | 1981-04-22 | $7700.00 | Window Closed / Lapsed |