US2738731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pumps
Assignee: Individual
•
Filing: 1950-06-23
•
Granted: 1956-03-20
•
Expires: 1970-06-23
Abstract
No abstract record available.
Inventors
- 👤 Lindsay H Browne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:31
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/08; F04B43/10; F04B43/107; F04B9/00; F04B9/02; F04B9/04; F04B9/042
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1832257A
Cited
US1852242A
Cited
US1832258A
Cited
US1931543A
Cited
US1899298A
Cited
US2070751A
Cited
DE577401C
Cited
DE596227C
Cited
US2196993A
Cited
US2246772A
Cited
US2343962A
Cited
US2317073A
Cited
US2377251A
Cited
US2444586A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-20 | 1959-09-19 | 1960-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-20 | 1963-09-19 | 1964-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-20 | 1967-09-19 | 1968-03-20 | $7700.00 | Window Closed / Lapsed |