US2466908A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic pulsator system
Assignee: Individual
•
Filing: 1946-05-18
•
Granted: 1949-04-12
•
Expires: 1966-05-18
Abstract
No abstract record available.
Inventors
- 👤 Harlan K Perrill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:25
CPC Classifications
F; F15; F15B; F15B7/00; F15B7/005; F15B7/003; F15B7/008
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2182237A
Cited
US2243385A
Cited
US2234008A
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US2356517A
Cited
US2299912A
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US2414302A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-11 | 1952-10-11 | 1953-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-11 | 1956-10-11 | 1957-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-11 | 1960-10-11 | 1961-04-12 | $7700.00 | Window Closed / Lapsed |