US2484434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making sponge rubber
Assignee: Uniroyal Inc
•
Filing: 1946-12-21
•
Granted: 1949-10-11
•
Expires: 1966-12-21
Abstract
No abstract record available.
Inventors
- 👤 Edward C Van Buskirk
- 👤 Paul V Butsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:22
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0014; C08J9/30; C08L; C08L21/00; C08J2309/00; C08J2309/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-10 | 1953-04-11 | 1953-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-10 | 1957-04-11 | 1957-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-10 | 1961-04-11 | 1961-10-11 | $7700.00 | Window Closed / Lapsed |