Patent US3026759A successfully refreshed from Google Patents.
US3026759A
Expired / Lapsed
US
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Drum head auxiliary unit
Assignee: Individual
•
Filing: 1960-03-03
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Granted: 1962-03-27
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Expires: 1980-03-03
Abstract
No abstract record available.
Inventors
- 👤 Rudolph R Kleiner
- 👤 Zarcone Jerome
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:00
CPC Classifications
G; G10; G10D; G10D13/00; G10D13/01; G10D13/02; G10D13/10; G10D13/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2078004A
Cited
US2565225A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-26 | 1965-09-25 | 1966-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-26 | 1969-09-25 | 1970-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-26 | 1973-09-25 | 1974-03-27 | $7700.00 | Window Closed / Lapsed |