US2145731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making corrugated sponge rubber
Assignee: IND PROCESS CORP
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Filing: 1937-05-07
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Granted: 1939-01-31
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Expires: 1957-05-07
Abstract
No abstract record available.
Inventors
- 👤 Henry R Minor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:29
CPC Classifications
B; B29; B29C; B29C35/00; B29C35/02; B29C35/0227; B29C44/00; B29C44/34; B29C44/3442; B29C44/3446; B29C44/3453; B29C44/58; B29C44/583; B29C2791/00; B29C2791/001; B29C2791/004; B29C2791/007; B29C35/04; B29C35/049; B29C51/00; B29C51/10; B29K; B29K2007/00; B29K2105/00; B29K2105/04; B29K2105/24; B29K2105/246
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) | 1942-01-30 | 1942-08-01 | 1943-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-01-30 | 1946-08-01 | 1947-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-01-30 | 1950-08-01 | 1951-01-31 | $7700.00 | Window Closed / Lapsed |