US2991193A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transparent heat-sealable sheets carrying volatile antioxidant and food package made therefrom
Assignee: Daubert Chemical Co Inc
•
Filing: 1957-02-06
•
Granted: 1961-07-04
•
Expires: 1977-02-06
Abstract
No abstract record available.
Inventors
- 👤 Fessler William Alfred
- 👤 Clemens A Hutter
- 👤 John G Schafer
- 👤 George O Stricker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:01
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/24; B65D81/28; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/263; Y10T428/264
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
A TRANSPARENT HEAT-SEALABLE SHEET COMPRISING A ACETATE CELLOPHANE FILM BASE, A TRANSPARENT VINYL ACETATE-VINYL CHLORIDE COPOLYMER COVERING FILM BONDED TO SAID FILM BASE, SAID COVERING FILM CARRYING 2,6-DI-TERTBUTYL-P-CRESOL.
Claim 2
Dependent Claim
28 words
A TRANSPARENT HEAT-SEALABLE SHEET COMPRISING A ACETATE CELLOPHANE FILM BASE, A TRANSPARENT VINYL ACETATE-VINYL CHLORIDE COPOLYMER COVERING FILM BONDED TO SAID FILM BASE, SAID COVERING FILM CARRYING 2,6-DI-TERTBUTYL-P-CRESOL.
References Cited (Backward Citations)
US2075106A
Cited
US2156987A
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US2233141A
Cited
US2391620A
Cited
US2676897A
Cited
US2758032A
Cited
US2679969A
Cited
US2843497A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-03 | 1965-01-02 | 1965-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-03 | 1969-01-02 | 1969-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-03 | 1973-01-02 | 1973-07-04 | $7700.00 | Window Closed / Lapsed |