US2071864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible core and method of making and using the same
Assignee: Bridgestone Firestone Inc
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Filing: 1934-11-24
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Granted: 1937-02-23
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Expires: 1954-11-24
Abstract
No abstract record available.
Inventors
- 👤 William H Myers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:40
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/08; B29D30/10; B29D30/16; B29D30/1628; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4981
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) | 1940-02-23 | 1940-08-24 | 1941-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-02-23 | 1944-08-24 | 1945-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-02-23 | 1948-08-24 | 1949-02-23 | $7700.00 | Window Closed / Lapsed |