US2647781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Latch
Assignee: Individual
•
Filing: 1949-09-12
•
Granted: 1953-08-04
•
Expires: 1969-09-12
Abstract
No abstract record available.
Inventors
- 👤 Burnie J Craig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:01
CPC Classifications
E; E05; E05B; E05B63/00; E05B63/24; E05B63/244; E05B15/00; E05B15/0086; Y; Y10; Y10S; Y10S292/00; Y10S292/23; Y10T; Y10T292/00; Y10T292/08; Y10T292/1043; Y10T292/1062; Y10T292/68; Y10T292/696; Y10T292/702
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-03 | 1957-02-02 | 1957-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-03 | 1961-02-02 | 1961-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-03 | 1965-02-02 | 1965-08-04 | $7700.00 | Window Closed / Lapsed |