US2672844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for treating flexible webs
Assignee: VAPO SYSTEMS Co
•
Filing: 1951-06-21
•
Granted: 1954-03-23
•
Expires: 1971-06-21
Abstract
No abstract record available.
Inventors
- 👤 Eugene M Flint
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:25
CPC Classifications
B; B05; B05B; B05B7/00; B05B7/02; B05B7/12; B05B13/00; B05B13/02; B05B13/0207; B05B7/08; B05B7/0884
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1850238A
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US1987046A
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US2118212A
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US2111761A
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US2146809A
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US2439157A
Cited
US2366150A
Cited
US2489445A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-22 | 1957-09-21 | 1958-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-22 | 1961-09-21 | 1962-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-22 | 1965-09-21 | 1966-03-23 | $7700.00 | Window Closed / Lapsed |