US2829601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibratory pump
Assignee: McGraw Edison Co
•
Filing: 1953-12-09
•
Granted: 1958-04-08
•
Expires: 1973-12-09
Abstract
No abstract record available.
Inventors
- 👤 Edward J Weinfurt
- 👤 Anthony Van Ryan
- 👤 Leslie C Westphal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:51
CPC Classifications
F; F04; F04F; F04F7/00; F04B; F04B43/00; F04B43/02; F04B43/04; F04B53/00; F04B53/10; F04B53/1077
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-07 | 1961-10-07 | 1962-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-07 | 1965-10-07 | 1966-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-07 | 1969-10-07 | 1970-04-08 | $7700.00 | Window Closed / Lapsed |