Patent US2315924A successfully refreshed from Google Patents.
US2315924A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preventing rubber objects from sticking together and improving the quality and durability of raw rubber in a divided state
Assignee: Individual
•
Filing: 1938-09-27
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Granted: 1943-04-06
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Expires: 1958-09-27
Abstract
No abstract record available.
Inventors
- 👤 Bertram Simon Hendrik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:21
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/12; C08J3/122; C08J3/124; C08J2321/00; Y; Y10; Y10S; Y10S264/00; Y10S264/72; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-04-05 | 1946-10-05 | 1947-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-04-05 | 1950-10-05 | 1951-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-04-05 | 1954-10-05 | 1955-04-06 | $7700.00 | Window Closed / Lapsed |