Patent US3056235A successfully refreshed from Google Patents.
US3056235A
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US
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Assignee: Individual
•
Filing: 1958-11-10
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Granted: 1962-10-02
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Expires: 1978-11-10
Abstract
No abstract record available.
Inventors
- 👤 Paul W Makray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:34
CPC Classifications
E; E04; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/0885
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB434297A
Cited
US329616A
Cited
US1830319A
Cited
US1868815A
Cited
US1896920A
Cited
GB615609A
Cited
US2637995A
Cited
US2693102A
Cited
US2666373A
Cited
US2859607A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-01 | 1966-04-02 | 1966-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-01 | 1970-04-02 | 1970-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-01 | 1974-04-02 | 1974-10-02 | $7700.00 | Window Closed / Lapsed |