US2848737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extrusion die
Assignee: Bridgestone Firestone Inc
•
Filing: 1952-07-18
•
Granted: 1958-08-26
•
Expires: 1972-07-18
Abstract
No abstract record available.
Inventors
- 👤 Clarence F Poetter
- 👤 James E Spohn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:29
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/253
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1867298A
Cited
US1773969A
Cited
US1883423A
Cited
US2155338A
Cited
US2328125A
Cited
US2447994A
Cited
US2542973A
Cited
US2601771A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-25 | 1962-02-24 | 1962-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-25 | 1966-02-24 | 1966-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-25 | 1970-02-24 | 1970-08-26 | $7700.00 | Window Closed / Lapsed |