US2898662A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expanding and contracting rolls
Assignee: Mount Hope Machinery Ltd
•
Filing: 1957-05-17
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Granted: 1959-08-11
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Expires: 1977-05-17
Abstract
No abstract record available.
Inventors
- 👤 John D Robertson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:04
CPC Classifications
F; F16; F16C; F16C13/00; F16C13/003; B; B29; B29C; B29C55/00; B29C55/02; B29C55/04; B29C55/08; B65; B65H; B65H23/00; B65H23/02; B65H23/022; B65H23/025; B65H23/0258; D; D06; D06C; D06C3/00; D06C3/06; D06C3/067; F16C2340/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2689392A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-10 | 1963-02-09 | 1963-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-10 | 1967-02-09 | 1967-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-10 | 1971-02-09 | 1971-08-11 | $7700.00 | Window Closed / Lapsed |