US3023738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power control system for pneumatic, free-piston vibration inducing devices
Assignee: Individual
•
Filing: 1959-03-26
•
Granted: 1962-03-06
•
Expires: 1979-03-26
Abstract
No abstract record available.
Inventors
- 👤 Jr Warren C Burgess
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:20
CPC Classifications
B; B06; B06B; B06B1/00; B06B1/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2699224A
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US2821172A
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US2861548A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-05 | 1965-09-04 | 1966-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-05 | 1969-09-04 | 1970-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-05 | 1973-09-04 | 1974-03-06 | $7700.00 | Window Closed / Lapsed |