US1370976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door-fastener
Assignee: Individual
•
Filing: 1920-10-16
•
Granted: 1921-03-08
•
Expires: 1940-10-16
Abstract
No abstract record available.
Inventors
- 👤 Knowlson Frederick
- 👤 Stevenson John Huber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:27
CPC Classifications
E; E05; E05C; E05C17/00; E05C17/02; E05C17/04; E05C17/12; E05C17/20; E05C17/22; Y; Y10; Y10S; Y10S292/00; Y10S292/04; Y10T; Y10T292/00; Y10T292/28; Y10T292/2935; Y10T292/296
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1924-03-07 | 1924-09-06 | 1925-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-03-07 | 1928-09-06 | 1929-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-03-07 | 1932-09-06 | 1933-03-08 | $7700.00 | Window Closed / Lapsed |