US1769833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for lifting or circulating liquids
Assignee: Individual
•
Filing: 1926-09-04
•
Granted: 1930-07-01
•
Expires: 1946-09-04
Abstract
No abstract record available.
Inventors
- 👤 Hammond Cecil Featherstone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:05
CPC Classifications
F; F04; F04D; F04D7/00; F04D7/02; F04D7/06; F24; F24D; F24D3/00; F24D3/02
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) | 1933-06-30 | 1933-12-30 | 1934-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-06-30 | 1937-12-30 | 1938-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-06-30 | 1941-12-30 | 1942-07-01 | $7700.00 | Window Closed / Lapsed |