Patent US2279881A successfully refreshed from Google Patents.
US3502113A
Expired / Lapsed
US
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Tubular article and method of manufacture
Assignee: Individual
•
Filing: 1966-12-14
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Granted: 1970-03-24
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Expires: 1986-12-14
Abstract
No abstract record available.
Inventors
- 👤 Johan Bjorksten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:34
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/56; B29C53/58; B29C53/581; B29C53/582
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US638247A
Cited
US2234353A
Cited
US2647300A
Cited
US2748805A
Cited
US2888042A
Cited
US2824033A
Cited
US2941911A
Cited
US3020615A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-23 | 1973-09-22 | 1974-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-23 | 1977-09-22 | 1978-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-23 | 1981-09-22 | 1982-03-24 | $7700.00 | Window Closed / Lapsed |