US2948223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diaphragm type pump
Assignee: Individual
•
Filing: 1958-01-21
•
Granted: 1960-08-09
•
Expires: 1978-01-21
Abstract
No abstract record available.
Inventors
- 👤 William H Mashinter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:30
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/0009; F04B43/0054; F04B43/02; F04B43/06; F04B43/067; F04B49/00; F04B49/22; F04B49/24; F04B53/00; F04B53/06; F04B53/10; F04B53/102
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2732069A
Cited
US885835A
Cited
US2267280A
Cited
US2675758A
Cited
US2646077A
Cited
US2711134A
Cited
US2764097A
Cited
US2836121A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-09 | 1964-02-08 | 1964-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-09 | 1968-02-08 | 1968-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-09 | 1972-02-08 | 1972-08-09 | $7700.00 | Window Closed / Lapsed |