Patent US3453847A successfully refreshed from Google Patents.
US3453847A
Expired / Lapsed
US
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Sheet guiding and tensioning device
Assignee: Chase Brass and Copper Co Inc
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Filing: 1966-02-18
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Granted: 1969-07-08
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Expires: 1986-02-18
Abstract
No abstract record available.
Inventors
- 👤 William A Romanauskas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:17
CPC Classifications
B; B21; B21B; B21B39/00; B21B39/02; B21B39/08; B21B41/00; B21B41/12; B21C; B21C47/00; B21C47/34; B65; B65H; B65H23/00; B65H23/02; B65H23/0204; B65H23/0212; B65H23/032; B65H23/038
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2214618A
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US2348695A
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US2750986A
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US2968936A
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US3039513A
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US3081651A
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US3175813A
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US3237439A
Cited
US3318125A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-07 | 1973-01-06 | 1973-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-07 | 1977-01-06 | 1977-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-07 | 1981-01-06 | 1981-07-08 | $7700.00 | Window Closed / Lapsed |