Patent US2722039A successfully refreshed from Google Patents.
US2722039A
Expired / Lapsed
US
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Apparatus for obtaining fibers from plant leaves
Assignee: Individual
•
Filing: 1951-12-14
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Granted: 1955-11-01
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Expires: 1971-12-14
Abstract
No abstract record available.
Inventors
- 👤 Mccrae James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:40
CPC Classifications
D; D01; D01B; D01B1/00; D01B1/10; D01B1/14; D01B1/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1021269A
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US1089261A
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US1601977A
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US1983454A
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US2238225A
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US2355999A
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US2408749A
Cited
US2571108A
Cited
US2567938A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-31 | 1959-05-02 | 1959-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-31 | 1963-05-02 | 1963-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-31 | 1967-05-02 | 1967-11-01 | $7700.00 | Window Closed / Lapsed |