US1040705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interlocking mechanism.
Assignee: Hart Manufacturing Co
•
Filing: 1911-03-14
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Granted: 1912-10-08
•
Expires: 1931-03-14
Abstract
No abstract record available.
Inventors
- 👤 Henry E Leppert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:16
CPC Classifications
H; H01; H01H; H01H13/00; H01H13/70; H01H13/72; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20207; Y10T74/20238; Y10T74/20244
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) | 1915-10-08 | 1916-04-08 | 1916-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1919-10-08 | 1920-04-08 | 1920-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1923-10-08 | 1924-04-08 | 1924-10-08 | $7700.00 | Window Closed / Lapsed |