US2679195A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming tubular articles
Assignee: Akzo Nobel UK PLC
•
Filing: 1950-07-13
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Granted: 1954-05-25
•
Expires: 1970-07-13
Abstract
No abstract record available.
Inventors
- 👤 Graeme G Whytlaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:20
CPC Classifications
B; B31; B31B; B31B50/00; B31B50/26; B31B50/36; B31B50/38; B31B50/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US686558A
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US1019043A
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US2060906A
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US2083969A
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US2145636A
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US2210338A
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US2169936A
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US2246043A
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US2335159A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-24 | 1957-11-23 | 1958-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-24 | 1961-11-23 | 1962-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-24 | 1965-11-23 | 1966-05-25 | $7700.00 | Window Closed / Lapsed |