US3406039A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic film structures
Assignee: EIDP Inc
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Filing: 1965-10-04
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Granted: 1968-10-15
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Expires: 1985-10-04
Abstract
No abstract record available.
Inventors
- 👤 Paufler Robert Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:21
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J2323/00; C08J2323/02; C08J2323/04; C08J2323/06; C08J2453/00; C08J2453/02; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2843; Y10T428/2852; Y10T428/2857; Y10T428/2878; Y10T428/2883; Y10T428/2891; Y10T428/31504; Y10T428/31652; Y10T428/31667
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A COMPOSITE STRUCTURE COMPRISING ESSENTIALLY A BASE SHEET OF PLASTIC FILM HAVING ON ONE SURFACE THEREOF A SUBCOAT OF A TACKY PRESSURE-SENSITIVE ADHESIVE, AND A TOPCOAT OF A COHESIVE SUBSTANTIALLY NON-ADHESIVE RESIN CONTAINING FROM 10% TO ABOUT 20% BY WEIGHT, BASED ON THE WEIGHT OF THE COHESIVE TOPCOAT RESIN, OF DIATOMACEOUS CALCIUM SILICATE.
Claim 2
Dependent Claim
53 words
A COMPOSITE STRUCTURE COMPRISING ESSENTIALLY A BASE SHEET OF PLASTIC FILM HAVING ON ONE SURFACE THEREOF A SUBCOAT OF A TACKY PRESSURE-SENSITIVE ADHESIVE, AND A TOPCOAT OF A COHESIVE SUBSTANTIALLY NON-ADHESIVE RESIN CONTAINING FROM 10% TO ABOUT 20% BY WEIGHT, BASED ON THE WEIGHT OF THE COHESIVE TOPCOAT RESIN, OF DIATOMACEOUS CALCIUM SILICATE.
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) | 1971-10-15 | 1972-04-15 | 1972-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-15 | 1976-04-15 | 1976-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-15 | 1980-04-15 | 1980-10-15 | $7700.00 | Window Closed / Lapsed |