US1002887A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Make-and-break mechanism for electrical circuits.
Assignee: JOHN A WALTER
•
Filing: 1910-04-07
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Granted: 1911-09-12
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Expires: 1930-04-07
Abstract
No abstract record available.
Inventors
- 👤 Jacob Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:00
CPC Classifications
G; G04; G04F; G04F3/00; G04F3/02; G04F3/027
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) | 1914-09-11 | 1915-03-13 | 1915-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1918-09-11 | 1919-03-13 | 1919-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1922-09-11 | 1923-03-13 | 1923-09-12 | $7700.00 | Window Closed / Lapsed |