US2936020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for expanding tubular bodies
Assignee: Uniroyal Inc
•
Filing: 1955-07-07
•
Granted: 1960-05-10
•
Expires: 1975-07-07
Abstract
No abstract record available.
Inventors
- 👤 Harold A Thornburg
- 👤 William R Epes
- 👤 Walter G Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:06
CPC Classifications
B; B21; B21D; B21D41/00; B21D41/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB160585A
Cited
US789867A
Cited
US1078583A
Cited
US1419929A
Cited
US1536433A
Cited
US1596538A
Cited
US1525288A
Cited
US2638802A
Cited
US2575938A
Cited
US2627891A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-10 | 1963-11-09 | 1964-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-10 | 1967-11-09 | 1968-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-10 | 1971-11-09 | 1972-05-10 | $7700.00 | Window Closed / Lapsed |