Patent US3959793A successfully refreshed from Google Patents.
US2708648A
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Method of sealing edges of wrapping material
Assignee: Eastman Kodak Co
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Filing: 1951-12-08
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Granted: 1955-05-17
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Expires: 1971-12-08
Abstract
No abstract record available.
Inventors
- 👤 Lawrence A Ulmschneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:33
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/18; B29C65/22; B29C65/221; B29C65/224; B29C65/228; B29C65/229; B29C66/00; B29C66/40; B29C66/41; B29C66/43; B29C66/432; B29C66/4322; B29C66/80; B29C66/81; B29C66/814; B29C66/8141; B29C66/81427; B29C66/816; B29C66/8161; B29C66/818; B29C66/8187; B29C66/81871; B29C66/83; B29C66/832; B29C66/8322; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/114; B29C66/1142; B29C66/70; B29C66/72; B29C66/723; B29C66/7232; B29C66/72321; B29C66/72327; B29C66/72328; B29C66/7234; B29C66/72343; B29C66/812; B29C66/8122; B29C66/81411; B29C66/81421; B29C66/81422; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1036; Y10T156/1038; Y10T156/17; Y10T156/1702; Y10T156/1712; Y10T156/1737
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
THE METHOD OF FORMING A SEAL BETWEEN TWO PORTIONS OF WRAPPING MATERIAL COMPRISING A SUPPORT HAVING A HEAT-SEALING PLASTIC LAYER ON ONE SIDE, COMPRISING THE STEPS OF CONTACTING AREAS OF THE PLASTIC LAYERS WHILE PASSING THE CONTACTING AREAS THROUGH A HEATING ZONE OF LIMITED WIDTH, SAID CONTACTING AREAS BEING PASSED THROUGH A PATH OF WAVY FORM WHILE MOVING THROUGH THE HEATING ZONE, THE AREAS TO BE ADHERED BEING CAUSED TO LIE ONE AGAINST THE OTHER THROUGH THE HEATING ZONE TO SMOOTH SAID AREAS INTO INTIMATE CONTACT WHILE PASSING THROUGH
Claim 2
Independent Claim
89 words
THE METHOD OF FORMING A SEAL BETWEEN TWO PORTIONS OF WRAPPING MATERIAL COMPRISING A SUPPORT HAVING A HEAT-SEALING PLASTIC LAYER ON ONE SIDE, COMPRISING THE STEPS OF CONTACTING AREAS OF THE PLASTIC LAYERS WHILE PASSING THE CONTACTING AREAS THROUGH A HEATING ZONE OF LIMITED WIDTH, SAID CONTACTING AREAS BEING PASSED THROUGH A PATH OF WAVY FORM WHILE MOVING THROUGH THE HEATING ZONE, THE AREAS TO BE ADHERED BEING CAUSED TO LIE ONE AGAINST THE OTHER THROUGH THE HEATING ZONE TO SMOOTH SAID AREAS INTO INTIMATE CONTACT WHILE PASSING THROUGH
References Cited (Backward Citations)
US2486759A
Cited
US2429177A
Cited
US2460460A
Cited
US2490111A
Cited
US2490946A
Cited
US2594229A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-16 | 1958-11-15 | 1959-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-16 | 1962-11-15 | 1963-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-16 | 1966-11-15 | 1967-05-17 | $7700.00 | Window Closed / Lapsed |