US2758802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tension controlling device
Assignee: Industrial Rayon Corp
•
Filing: 1952-12-29
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Granted: 1956-08-14
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Expires: 1972-12-29
Abstract
No abstract record available.
Inventors
- 👤 Theodore E Carlson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:19
CPC Classifications
B; B65; B65H; B65H59/00; B65H59/10; B65H59/20; B65H59/22; B65H59/225; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1790553A
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DE606131C
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US1437116A
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US1422240A
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US1844010A
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GB366157A
Cited
DE643189C
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US2086983A
Cited
US2224298A
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US2393994A
Cited
US2581142A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-14 | 1960-02-13 | 1960-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-14 | 1964-02-13 | 1964-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-14 | 1968-02-13 | 1968-08-14 | $7700.00 | Window Closed / Lapsed |