US1370943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Can-opener
Assignee: Individual
•
Filing: 1919-10-13
•
Granted: 1921-03-08
•
Expires: 1939-10-13
Abstract
No abstract record available.
Inventors
- 👤 William A Boyd
- 👤 Robert H Burns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:49
CPC Classifications
B; B67; B67B; B67B7/00; B67B7/30; B67B7/34; B67B7/36; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17666; Y10T279/17692; Y10T279/17717; Y10T279/19; Y10T279/1926
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 |