US3261903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for film stretching
Assignee: Goodyear Tire and Rubber Co
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Filing: 1963-07-02
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Granted: 1966-07-19
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Expires: 1983-07-02
Abstract
No abstract record available.
Inventors
- 👤 Vernon R Carr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:37
CPC Classifications
B; B29; B29C; B29C55/00; B29C55/02; B29C55/20; B29C55/10; B29C55/12; B29C55/14; B29C55/146; B29C35/00; B29C35/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
IN COMBINATION IN A FLIM STRETCHING APPARATUS HAVING A TRANSVERSE STRETCH MEANS, A LONGITUDINAL STRETCH MEANS AND A HEAT-SET MEANS THE IMPROVEMENT COMPRISING AT LEAST ONE LOCALIZED HEAT PRODUCING UNIT LOCATED PRIOR TO THE LONGITUDINAL STRETCH MEANS SO THAT THE ORIFICE OF THE HEAT UNIT ID DIRECTED TOWARD THE FOLM, KNURLED SURFACES NEAR THE ENDS OF AT LEAST ONE LONGITUDINAL STRETCH ROLL IN SAID LONGITUDINAL STRETCH MEANS, A PLURALITY OF SMALL DIAMETER NARROW WIDTH ROLLS THAT COACT WITH THE KNURLED SURFACES OF SAID LONGITUDINAL STRETCH ROLL SO AS TO FORCE THE HEATED EDGES OF FILM THAT IS BEING PROCESSED INTO SAID KNURLED SURFACES, AND AT LEAST ONE HEAT-SET ROLL ADAPTED TO RECEIVE
Claim 2
Dependent Claim
112 words
IN COMBINATION IN A FLIM STRETCHING APPARATUS HAVING A TRANSVERSE STRETCH MEANS, A LONGITUDINAL STRETCH MEANS AND A HEAT-SET MEANS THE IMPROVEMENT COMPRISING AT LEAST ONE LOCALIZED HEAT PRODUCING UNIT LOCATED PRIOR TO THE LONGITUDINAL STRETCH MEANS SO THAT THE ORIFICE OF THE HEAT UNIT ID DIRECTED TOWARD THE FOLM, KNURLED SURFACES NEAR THE ENDS OF AT LEAST ONE LONGITUDINAL STRETCH ROLL IN SAID LONGITUDINAL STRETCH MEANS, A PLURALITY OF SMALL DIAMETER NARROW WIDTH ROLLS THAT COACT WITH THE KNURLED SURFACES OF SAID LONGITUDINAL STRETCH ROLL SO AS TO FORCE THE HEATED EDGES OF FILM THAT IS BEING PROCESSED INTO SAID KNURLED SURFACES, AND AT LEAST ONE HEAT-SET ROLL ADAPTED TO RECEIVE
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |