US1093871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressed-air water-elevator.
Assignee: Individual
•
Filing: 1912-09-04
•
Granted: 1914-04-21
•
Expires: 1932-09-04
Abstract
No abstract record available.
Inventors
- 👤 Robert Safford Mcintyre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:56
CPC Classifications
F; F04; F04F; F04F1/00; F04F1/06; F04F1/10
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) | 1917-04-20 | 1917-10-20 | 1918-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1921-04-20 | 1921-10-20 | 1922-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1925-04-20 | 1925-10-20 | 1926-04-21 | $7700.00 | Window Closed / Lapsed |