Patent US2592747A successfully refreshed from Google Patents.
US2592747A
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Latex impregnated luffa and method of preparing the same
Assignee: Individual
•
Filing: 1949-03-30
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Granted: 1952-04-15
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Expires: 1969-03-30
Abstract
No abstract record available.
Inventors
- 👤 Schumann Hans Maassen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:58
CPC Classifications
C; C08; C08L; C08L97/00; C08L97/02; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1062; Y10T156/1064; Y10T156/1075; Y10T156/108
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US989572A
Cited
US1606561A
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US1949034A
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US2215973A
Cited
US2141708A
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US2245202A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-15 | 1955-10-15 | 1956-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-15 | 1959-10-15 | 1960-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-15 | 1963-10-15 | 1964-04-15 | $7700.00 | Window Closed / Lapsed |