US2581806A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power supply means for percussor apparatus
Assignee: Individual
•
Filing: 1948-03-05
•
Granted: 1952-01-08
•
Expires: 1968-03-05
Abstract
No abstract record available.
Inventors
- 👤 Robert C Mcshirley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:12
CPC Classifications
A; A61; A61H; A61H23/00; A61H23/02; A61H23/0218; H; H02; H02P; H02P25/00; H02P25/16; H02P25/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US820753A
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US2054590A
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US2180189A
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US2154427A
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US2454494A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-07 | 1955-07-09 | 1956-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-07 | 1959-07-09 | 1960-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-07 | 1963-07-09 | 1964-01-08 | $7700.00 | Window Closed / Lapsed |