US963277A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ventilating apparatus.
Assignee: Individual
•
Filing: 1906-07-27
•
Granted: 1910-07-05
•
Expires: 1926-07-27
Abstract
No abstract record available.
Inventors
- 👤 William Clifford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:26
CPC Classifications
F; F04; F04D; F04D13/00; F04D13/12; F04D13/14; F01; F01D; F01D1/00; F01D1/02; F01D1/026
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) | 1913-07-04 | 1914-01-03 | 1914-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1917-07-04 | 1918-01-03 | 1918-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1921-07-04 | 1922-01-03 | 1922-07-05 | $7700.00 | Window Closed / Lapsed |