US2433849A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cork substitute and aprocess for its production
Assignee: Individual
•
Filing: 1943-08-21
•
Granted: 1948-01-06
•
Expires: 1963-08-21
Abstract
No abstract record available.
Inventors
- 👤 Elbert C Lathrop
- 👤 Samuel I Arenovsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:59
CPC Classifications
C; C08; C08L; C08L89/00; C08L1/00; C08L1/02; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L89/005; C08L89/04; C08L89/06; C08K; C08K5/00; C08K5/0008; C08K5/0016; C08K5/04; C08K5/05; C08K5/053; C08K5/15; C08K5/151; C08K5/1545
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1882792A
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US2165392A
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US1888410A
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US2085047A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-01-05 | 1951-07-07 | 1952-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-01-05 | 1955-07-07 | 1956-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-01-05 | 1959-07-07 | 1960-01-06 | $7700.00 | Window Closed / Lapsed |