US2944918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyethylene terephthalate film having an adherent wax coating
Assignee: EIDP Inc
•
Filing: 1955-06-01
•
Granted: 1960-07-12
•
Expires: 1975-06-01
Abstract
No abstract record available.
Inventors
- 👤 Nagel Herbert
- 👤 Hatt Lawrence Roy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:52
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/052; C08J2367/00; C08J2367/02; C08J2491/00; Y; Y10; Y10T; Y10T428/00; Y10T428/27; Y10T428/273; Y10T428/28; Y10T428/2813; Y10T428/2835
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
AN ORIENTED POLYETHYLENE TREPHTHALATE FILM HAVING A CONTINUOUS, THIN, HEAT-SEALABLE, UNIFORM COATING CONSISTING ESSENTIALLY OF WAX, SAID COATING BEING NO THICKER
Claim 2
Dependent Claim
21 words
AN ORIENTED POLYETHYLENE TREPHTHALATE FILM HAVING A CONTINUOUS, THIN, HEAT-SEALABLE, UNIFORM COATING CONSISTING ESSENTIALLY OF WAX, SAID COATING BEING NO THICKER
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US2465319A
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US2348688A
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US2561147A
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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) | 1963-07-12 | 1964-01-11 | 1964-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-12 | 1968-01-11 | 1968-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-12 | 1972-01-11 | 1972-07-12 | $7700.00 | Window Closed / Lapsed |