US1294959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety operating mechanism.
Assignee: M B KNOWLTON Co
•
Filing: 1914-08-08
•
Granted: 1919-02-18
•
Expires: 1934-08-08
Abstract
No abstract record available.
Inventors
- 👤 Charles R Seymour
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:40
CPC Classifications
B; B31; B31B; B31B50/00; B31B50/006; B31B2100/00; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2142; Y10T74/2159
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1922-02-17 | 1922-08-19 | 1923-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1926-02-17 | 1926-08-19 | 1927-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1930-02-17 | 1930-08-19 | 1931-02-18 | $7700.00 | Window Closed / Lapsed |