Patent US2181035A successfully refreshed from Google Patents.
US2181035A
Expired / Lapsed
US
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Tubing and method of making the same
Assignee: STONE PAPER TUBE Co
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Filing: 1938-02-14
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Granted: 1939-11-21
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Expires: 1958-02-14
Abstract
No abstract record available.
Inventors
- 👤 Clayton E White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:25
CPC Classifications
B; B31; B31C; B31C3/00; F; F16; F16L; F16L9/00; F16L9/16
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) | 1942-11-20 | 1943-05-22 | 1943-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-11-20 | 1947-05-22 | 1947-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-11-20 | 1951-05-22 | 1951-11-21 | $7700.00 | Window Closed / Lapsed |