US2297018A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sponge rubber and process of making same
Assignee: SALTA Corp
•
Filing: 1939-02-03
•
Granted: 1942-09-29
•
Expires: 1959-02-03
Abstract
No abstract record available.
Inventors
- 👤 Robert L Overstreet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:36
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/34; B29C44/56; B29C44/5627; B29C44/02; B29C44/08; B29C44/083; B29K; B29K2105/00; B29K2105/04; Y; Y10; Y10S; Y10S521/00; Y10S521/918
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) | 1945-09-28 | 1946-03-30 | 1946-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-09-28 | 1950-03-30 | 1950-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-09-28 | 1954-03-30 | 1954-09-29 | $7700.00 | Window Closed / Lapsed |