Patent US2703683A successfully refreshed from Google Patents.
US2703683A
Expired / Lapsed
US
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Paper machinery
Assignee: Black Clawson Co
•
Filing: 1953-06-01
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Granted: 1955-03-08
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Expires: 1973-06-01
Abstract
No abstract record available.
Inventors
- 👤 Raymond L Evans
- 👤 Stephen A Staege
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:19
CPC Classifications
B; B65; B65H; B65H19/00; B65H19/22; B65H19/2238; B65H19/2253; B65H19/2261; B65H2408/00; B65H2408/20; B65H2408/23; B65H2408/236
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1951715A
Cited
US2176198A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-03-07 | 1958-09-06 | 1959-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-03-07 | 1962-09-06 | 1963-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-03-07 | 1966-09-06 | 1967-03-08 | $7700.00 | Window Closed / Lapsed |