Patent US2903184A successfully refreshed from Google Patents.
US2903184A
Expired / Lapsed
US
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Recording mechanism for fluid pumps
Assignee: Individual
•
Filing: 1955-03-04
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Granted: 1959-09-08
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Expires: 1975-03-04
Abstract
No abstract record available.
Inventors
- 👤 Robert D Weatherby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:06
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/06; B67D7/08; B67D7/10; B67D7/103; B67D7/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1010675A
Cited
US1078012A
Cited
US1204242A
Cited
US1475368A
Cited
US2522845A
Cited
US2643792A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-07 | 1963-03-09 | 1963-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-07 | 1967-03-09 | 1967-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-07 | 1971-03-09 | 1971-09-08 | $7700.00 | Window Closed / Lapsed |