US898193A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Perforating mechanism.
Assignee: Individual
•
Filing: 1908-01-29
•
Granted: 1908-09-08
•
Expires: 1928-01-29
Abstract
No abstract record available.
Inventors
- 👤 Roderick M Davidson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:46
CPC Classifications
B; B23; B23D; B23D25/00; B23D25/12; B26; B26D; B26D1/00; B26D1/56; B26D1/62; B26D1/626; Y; Y10; Y10T; Y10T83/00; Y10T83/465; Y10T83/4766; Y10T83/4795; Y10T83/4812; Y10T83/483; Y10T83/4836
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) | 1911-09-08 | 1912-03-09 | 1912-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1915-09-08 | 1916-03-09 | 1916-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1919-09-08 | 1920-03-09 | 1920-09-08 | $7700.00 | Window Closed / Lapsed |