US1424176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple-chamber visible-flow oil pump
Assignee: Individual
•
Filing: 1921-07-26
•
Granted: 1922-08-01
•
Expires: 1941-07-26
Abstract
No abstract record available.
Inventors
- 👤 George B Nicholson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:31
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/06; B67D7/08; B67D7/16; B67D7/163; B67D7/166
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) | 1925-07-31 | 1926-01-30 | 1926-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1929-07-31 | 1930-01-30 | 1930-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1933-07-31 | 1934-01-30 | 1934-08-01 | $7700.00 | Window Closed / Lapsed |