US3108323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for heating and stretching filamens
Assignee: Monsanto Chemicals Ltd
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Filing: 1961-06-23
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Granted: 1963-10-29
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Expires: 1981-06-23
Abstract
No abstract record available.
Inventors
- 👤 Paul E Sikorski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:10
CPC Classifications
D; D02; D02J; D02J1/00; D02J1/22; D02J1/224; D01; D01D; D01D10/00; D01D10/04; D01D10/0436; D01D10/0481
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
IN A PROCESS FOR TREATING SYNTHETIC FILKAMENTS CAPABLE OF BEING MOLECULARLY ORIENTED COMPRISING THE STEPS OF LONGITUDINALLY FEEDING SAID FILAMENTS TO A HEAT-STRETCH ZONE AT ONE RATE OF SPEED, WITHDRAWING SAID FILAMENTS FROM SAID HEAT-STRETCH ZONE AT A PREDETERMINED INCREASED RATE OF SPEED TO ATTENUATE SAID FILAMENTS THEREBETWEEN, CONTACTING ONE SIDE OF SAID FILAMENTS WITHIN SAID HEAT-STRETCH ZONE AGAINST A FIRST HEATED CURVED SURFACE SO THAT THE FILAMENTS ARE HEATED AT SAID ONE SIDE THEREOF AND ASSUME A PATH OF THE FIRST CURVED SURFACE, REMOVING THE FILAMENTS TANGENTIALLY FROM THE FIRST CURVED SURFACE AND PASSING THE FILAMENTS IN A SUBSTANTIALLY STRAIGHT LINE INTO TANGENTIAL
Claim 2
Dependent Claim
104 words
IN A PROCESS FOR TREATING SYNTHETIC FILKAMENTS CAPABLE OF BEING MOLECULARLY ORIENTED COMPRISING THE STEPS OF LONGITUDINALLY FEEDING SAID FILAMENTS TO A HEAT-STRETCH ZONE AT ONE RATE OF SPEED, WITHDRAWING SAID FILAMENTS FROM SAID HEAT-STRETCH ZONE AT A PREDETERMINED INCREASED RATE OF SPEED TO ATTENUATE SAID FILAMENTS THEREBETWEEN, CONTACTING ONE SIDE OF SAID FILAMENTS WITHIN SAID HEAT-STRETCH ZONE AGAINST A FIRST HEATED CURVED SURFACE SO THAT THE FILAMENTS ARE HEATED AT SAID ONE SIDE THEREOF AND ASSUME A PATH OF THE FIRST CURVED SURFACE, REMOVING THE FILAMENTS TANGENTIALLY FROM THE FIRST CURVED SURFACE AND PASSING THE FILAMENTS IN A SUBSTANTIALLY STRAIGHT LINE INTO TANGENTIAL
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) | 1966-10-28 | 1967-04-29 | 1967-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-28 | 1971-04-29 | 1971-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-28 | 1975-04-29 | 1975-10-29 | $7700.00 | Window Closed / Lapsed |