Patent US3249129A successfully refreshed from Google Patents.
US3249129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-sealable materials
Assignee: Johnson and Johnson
•
Filing: 1963-05-23
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Granted: 1966-05-03
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Expires: 1983-05-23
Abstract
No abstract record available.
Inventors
- 👤 John M Renfroe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:09
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/69; B29C65/00; B29C65/02; B29C65/04; B29C66/01; B29C66/03; B29C66/032; B29C66/0324; B29C66/03241; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/14; B29C66/40; B29C66/41; B29C66/43; B29C66/70; B29C66/71; B29C66/72; B29C66/729; D; D01; D01F; D01F6/00; D01F6/44; D01F6/46; D04; D04H; D04H1/00; D04H1/40; D04H1/54; B29K; B29K2313/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
AN ELECTRONICALLY HEAT-SEALABLE TEXTILE FABRIC CAPABLE OF BEING WELDED BY A HIGH FREQUENCY CURRENT COMPRISING SYNTHETIC, HEAT SEALABLE THERMOPLASTIC FILAMENTS CONSISTING OF FROM ABOUT 95 PARTS TO ABOUT 50 PARTS BY WEIGHT OF A THERMOPLASTIC SYNTHETIC POLYOLEFIN RESIN SELECTED FROM THE GROUP CONSISTING OF POLYPROPYLENE AND POLYETHYLENE HAVING SUBSTANTIALLY UNIFORMLY DISPERSED THEREIN FROM ABOUT 5 PARTS TO ABOUT 50 PARTS BY WEIGHT OF PARTICLES OF A FIBERFORMING SYNTHETIC POLYMERIC CARBONAMIDE WHICH CONTAINS RECURRING CARBONAMIDE GROUPS AS AN INTEGRAL PART OF THE MAIN POLYMER CHAIN SEPARATED BY AT LEAST TWO CARBON ATOMS.
Claim 2
Dependent Claim
91 words
AN ELECTRONICALLY HEAT-SEALABLE TEXTILE FABRIC CAPABLE OF BEING WELDED BY A HIGH FREQUENCY CURRENT COMPRISING SYNTHETIC, HEAT SEALABLE THERMOPLASTIC FILAMENTS CONSISTING OF FROM ABOUT 95 PARTS TO ABOUT 50 PARTS BY WEIGHT OF A THERMOPLASTIC SYNTHETIC POLYOLEFIN RESIN SELECTED FROM THE GROUP CONSISTING OF POLYPROPYLENE AND POLYETHYLENE HAVING SUBSTANTIALLY UNIFORMLY DISPERSED THEREIN FROM ABOUT 5 PARTS TO ABOUT 50 PARTS BY WEIGHT OF PARTICLES OF A FIBERFORMING SYNTHETIC POLYMERIC CARBONAMIDE WHICH CONTAINS RECURRING CARBONAMIDE GROUPS AS AN INTEGRAL PART OF THE MAIN POLYMER CHAIN SEPARATED BY AT LEAST TWO CARBON ATOMS.
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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) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |