US3409944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drawing frame
Assignee: OM Ltd
•
Filing: 1964-06-22
•
Granted: 1968-11-12
•
Expires: 1984-06-22
Abstract
No abstract record available.
Inventors
- 👤 Kajimura Hiroshi
- 👤 Ota Tatuo
- 👤 Nagira Satoshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:15
CPC Classifications
D; D01; D01H; D01H5/00; D01H5/18; D01H5/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A DRAWING FRAME COMPRISING, IN COMBINATION, (A) A PAIR OF CALENDER ROLLERS AND PAIRS OF DRAFT ROLLERS ARRANGED THEREABOVE, SAID PAIRS OF DRAFT ROLLERS EACH COMPRISING A BOTTOM ROLLER AND A TOP ROLLER, SAID BOTTOM ROLLERS BEING SUPPORTED ON ROLLER STANDS AND BEING POSITIVELY DRIVEN, AND EACH OF SAID TOP ROLLERS HAVING BEARING PARTS AT ITS ENDS,
Claim 2
Dependent Claim
57 words
A DRAWING FRAME COMPRISING, IN COMBINATION, (A) A PAIR OF CALENDER ROLLERS AND PAIRS OF DRAFT ROLLERS ARRANGED THEREABOVE, SAID PAIRS OF DRAFT ROLLERS EACH COMPRISING A BOTTOM ROLLER AND A TOP ROLLER, SAID BOTTOM ROLLERS BEING SUPPORTED ON ROLLER STANDS AND BEING POSITIVELY DRIVEN, AND EACH OF SAID TOP ROLLERS HAVING BEARING PARTS AT ITS ENDS,
References Cited (Backward Citations)
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Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-12 | 1972-05-13 | 1972-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-12 | 1976-05-13 | 1976-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-12 | 1980-05-13 | 1980-11-12 | $7700.00 | Window Closed / Lapsed |