Patent US3429345A successfully refreshed from Google Patents.
US3429345A
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Assignee: CHARLES L O DONNELL
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Filing: 1967-03-27
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Granted: 1969-02-25
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Expires: 1987-03-27
Abstract
No abstract record available.
Inventors
- 👤 Charles L O'donnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:42
CPC Classifications
D; D03; D03D; D03D49/00; D03D49/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US596315A
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GB189413343A
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DE552663C
Cited
US2341843A
Cited
US2556037A
Cited
GB721546A
Cited
GB740578A
Cited
GB949349A
Cited
FR1389334A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |