US1408649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air pump
Assignee: Individual
•
Filing: 1917-01-09
•
Granted: 1922-03-07
•
Expires: 1937-01-09
Abstract
No abstract record available.
Inventors
- 👤 William E Shore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:38
CPC Classifications
F; F04; F04C; F04C29/00; F04C18/00; F04C18/30; F04C18/34; F04C18/344
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) | 1925-03-06 | 1925-09-05 | 1926-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1929-03-06 | 1929-09-05 | 1930-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1933-03-06 | 1933-09-05 | 1934-03-07 | $7700.00 | Window Closed / Lapsed |