US2131073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of expanded rubber
Assignee: Rubatex Products Inc
•
Filing: 1936-02-21
•
Granted: 1938-09-27
•
Expires: 1956-02-21
Abstract
No abstract record available.
Inventors
- 👤 Roberts Dudley
- 👤 James S Reid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:47
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/30; C08J9/16; C08J9/18; C08J9/22; C08J9/228; C08J9/236; C08L; C08L21/00; C08J2321/00; Y; Y10; Y10S; Y10S220/00; Y10S220/09
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1941-09-26 | 1942-03-28 | 1942-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-09-26 | 1946-03-28 | 1946-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-09-26 | 1950-03-28 | 1950-09-27 | $7700.00 | Window Closed / Lapsed |