Patent US1028675A successfully refreshed from Google Patents.
US1028675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Screw-driver.
Assignee: CHARLES N KNAPP
•
Filing: 1911-07-11
•
Granted: 1912-06-04
•
Expires: 1931-07-11
Abstract
No abstract record available.
Inventors
- 👤 Burton B Chase
- 👤 Emmett Van Sickle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:56
CPC Classifications
B; B25; B25B; B25B15/00; B25B15/02; B25B15/04; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17128; Y10T279/17136; Y10T279/17145
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) | 1915-06-04 | 1915-12-04 | 1916-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1919-06-04 | 1919-12-04 | 1920-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1923-06-04 | 1923-12-04 | 1924-06-04 | $7700.00 | Window Closed / Lapsed |