US2354446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of molding and vulcanizing hollow articles
Assignee: Bridgestone Firestone Inc
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Filing: 1942-12-09
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Granted: 1944-07-25
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Expires: 1962-12-09
Abstract
No abstract record available.
Inventors
- 👤 Roy W Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:42
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/0601; B29D30/0602; B29D30/0606; B29D2030/0607; B29D2030/062; B29D2030/0621; B29D2030/0626; B29D2030/0627
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) | 1947-07-25 | 1948-01-24 | 1948-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-07-25 | 1952-01-24 | 1952-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-07-25 | 1956-01-24 | 1956-07-25 | $7700.00 | Window Closed / Lapsed |