US2940418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper machinery
Assignee: Black Clawson Co
•
Filing: 1959-03-27
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Granted: 1960-06-14
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Expires: 1979-03-27
Abstract
No abstract record available.
Inventors
- 👤 William R Penrod
- 👤 Richard W Phelps
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:30
CPC Classifications
D; D21; D21H; D21H25/00; D21H25/08; D21H25/16; C; C23; C23C; C23C2/00; C23C2/14; C23C2/16; C23C2/18; C23C2/20; D21H5/00; D21H5/0005; D21H5/006; D21H5/0062; D21H5/007
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) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |