US634229A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric signaling apparatus for elevators.
Assignee: ELEVATOR SUPPLY AND REPAIR Co
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Filing: 1898-09-03
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Granted: 1899-10-03
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Expires: 1918-09-03
Abstract
No abstract record available.
Inventors
- 👤 Samuel D Collett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:31
CPC Classifications
B; B66; B66B; B66B1/00; B66B1/34; B66B1/46; B66B1/468
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) | 1902-10-03 | 1903-04-04 | 1903-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1906-10-03 | 1907-04-04 | 1907-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1910-10-03 | 1911-04-04 | 1911-10-04 | $7700.00 | Window Closed / Lapsed |