US1387805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of making rubber articles having cores and apparatus therefor
Assignee: PARAMOUNT RUBBER CONS Inc
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Filing: 1919-12-29
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Granted: 1921-08-16
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Expires: 1939-12-29
Abstract
No abstract record available.
Inventors
- 👤 Roberts Fred Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:10
CPC Classifications
B; B29; B29C; B29C51/00; B29C51/26; B29C51/266; B29C51/267; B29C63/00; B29C63/22; B29C70/00; B29C70/68; B29C70/70; B29C33/00; B29C33/76; B29L; B29L2031/00; B29L2031/54
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) | 1924-08-15 | 1925-02-14 | 1925-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-08-15 | 1929-02-14 | 1929-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-08-15 | 1933-02-14 | 1933-08-16 | $7700.00 | Window Closed / Lapsed |