US3148236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Creasing process for thermoplastic materials
Assignee: Monsanto Co
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Filing: 1961-10-30
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Granted: 1964-09-08
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Expires: 1981-10-30
Abstract
No abstract record available.
Inventors
- 👤 Robert P Nirenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:21
CPC Classifications
D; D06; D06F; D06F71/00; D06F71/32; D06F71/34; D06F69/00; Y; Y10; Y10S; Y10S8/00; Y10S8/21
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A METHOD OF PERMANENTLY PLEATING OR CREASING THERMOPLASTIC MATERIALS COMPRISING CREASING THE MATERIAL IN A CONVENTIONAL MANNER AND THEN ENCASING THE CREASED MATERIAL IN A COVERING OF PLASTIC FILM SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENE, POLYPROPYLENE, POLYESTERS, POLYSTYRENE, VINYL NITRILE RUBBER, SILICONE RUBBER AND POLYAMIDES, SAID PLASTIC FILMHAVING A WATER VAPOR PERMEABILITY OF FROM ABOUT 0.01 TO ABOUT 1.5 GRAMS/24 HOURS/M2/MM. THICKNESS/CM. HG AT 25*C. AND SUBJECTING SAME TO STEAM AT A TEMPERATURE OF FROM ABOUT 93*C. TO ABOUT 150*C. FOR A PERIOD OF TIME FROM ABOUT 5 TO ABOUT 30 MINUTES.
Claim 2
Independent Claim
93 words
A METHOD OF PERMANENTLY PLEATING OR CREASING THERMOPLASTIC MATERIALS COMPRISING CREASING THE MATERIAL IN A CONVENTIONAL MANNER AND THEN ENCASING THE CREASED MATERIAL IN A COVERING OF PLASTIC FILM SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENE, POLYPROPYLENE, POLYESTERS, POLYSTYRENE, VINYL NITRILE RUBBER, SILICONE RUBBER AND POLYAMIDES, SAID PLASTIC FILMHAVING A WATER VAPOR PERMEABILITY OF FROM ABOUT 0.01 TO ABOUT 1.5 GRAMS/24 HOURS/M2/MM. THICKNESS/CM. HG AT 25*C. AND SUBJECTING SAME TO STEAM AT A TEMPERATURE OF FROM ABOUT 93*C. TO ABOUT 150*C. FOR A PERIOD OF TIME FROM ABOUT 5 TO ABOUT 30 MINUTES.
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) | 1967-09-08 | 1968-03-09 | 1968-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-08 | 1972-03-09 | 1972-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-08 | 1976-03-09 | 1976-09-08 | $7700.00 | Window Closed / Lapsed |