US3291671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dielectric fusing of plastic films
Assignee: Individual
•
Filing: 1962-09-04
•
Granted: 1966-12-13
•
Expires: 1982-09-04
Abstract
No abstract record available.
Inventors
- 👤 Myer H Hecht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:42
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/18; B29C65/04; B29C65/72; B29C66/00; B29C66/004; B29C66/0042; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/45; B29C66/70; B29C66/72; B29C66/723; B29C66/7232; B29C66/72327; B29C66/72328; B29C66/73; B29C66/731; B29C66/7314; B29C66/73143; B29C66/739; B29C66/7392; B29C66/74; B29C66/748; B29C66/7486; B29C66/80; B29C66/81; B29C66/812; B29C66/8122; B29C66/8126; B29C66/81262; B29C66/81263; B32; B32B; B32B27/00; B29C66/71
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
IN A METHOD OF UNITING OPPOSED CONFRONTING SURFACES OF LAYERS OF PAPERBOARD CONTAINING BY WEIGHT APPROXIMATELY 5-8% WATER DISTRIBUTED THROUGHOUT THE MASS OF SAID PAPERBOARD, THE STEPS OF: INTERPOSING BETWEEN AND IN DIRECT FACE-TO-FACE CONTACT WITH THE OPPOSED CONFRONTING SURFACES OF SAID WATERCONTAINING PAPERBOARD LAYERS AT LEAST ONE ELECTRICALLY NON-POLAR, LOW DIELECTRIC LOSS FACTOR THERMOPLASTOC FILM NOT INHERENTLY CAPABLE OF BEING FUSED BY A DIRECT RADIO FREQUENCY FIELD IMPRESSED ACROSS IT, POSITIONING SAID PAPERBOARD LAYERS WITH SAID LOW DIELECTRIC LOSS FACTOR THERMOPLASTIC FILM IN INTIMATE CONTACT THEREBETWEEN UNDER PRESSURE BETWEEN ELECTRODES IN A DIRECT RADIO FREQUENCY FIELD IN THE MEGACYCLE RANGE, AND MAINTAINING SAID FIELD UNTIL SAID PLASTIC FILM IS TACKIFIED AND FUSED TO THE OPPOSED SURFACES OF SAID PAPERBOARD LAYERS.
Claim 2
Dependent Claim
121 words
IN A METHOD OF UNITING OPPOSED CONFRONTING SURFACES OF LAYERS OF PAPERBOARD CONTAINING BY WEIGHT APPROXIMATELY 5-8% WATER DISTRIBUTED THROUGHOUT THE MASS OF SAID PAPERBOARD, THE STEPS OF: INTERPOSING BETWEEN AND IN DIRECT FACE-TO-FACE CONTACT WITH THE OPPOSED CONFRONTING SURFACES OF SAID WATERCONTAINING PAPERBOARD LAYERS AT LEAST ONE ELECTRICALLY NON-POLAR, LOW DIELECTRIC LOSS FACTOR THERMOPLASTOC FILM NOT INHERENTLY CAPABLE OF BEING FUSED BY A DIRECT RADIO FREQUENCY FIELD IMPRESSED ACROSS IT, POSITIONING SAID PAPERBOARD LAYERS WITH SAID LOW DIELECTRIC LOSS FACTOR THERMOPLASTIC FILM IN INTIMATE CONTACT THEREBETWEEN UNDER PRESSURE BETWEEN ELECTRODES IN A DIRECT RADIO FREQUENCY FIELD IN THE MEGACYCLE RANGE, AND MAINTAINING SAID FIELD UNTIL SAID PLASTIC FILM IS TACKIFIED AND FUSED TO THE OPPOSED SURFACES OF SAID PAPERBOARD LAYERS.
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) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |