US3236677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Facings
Assignee: Permacel
•
Filing: 1961-10-06
•
Granted: 1966-02-22
•
Expires: 1981-10-06
Abstract
No abstract record available.
Inventors
- 👤 James A Bradstreet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:00
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/48; H01B3/485; C; C09; C09D; C09D167/00; C09D167/08; C09J; C09J7/00; C09J7/40; C09J7/401; C09J7/403; H01B3/008; H01B3/30; C09J2400/00; C09J2400/20; C09J2400/26; C09J2400/263; C09J2400/28; C09J2400/283; C09J2461/00; C09J2461/005; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2839; Y10T428/31504; Y10T428/31942
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A FLEXIBLE FIBER SHEET HAVING AT LEAST ONE SURFACE ADAPTED TO BE PLACED IN CONTACT WITH A PRESSURE-SENSITIVE ADHESIVE AND READILY RELEASABLE THEREFROM, SAID SURFACE CONTAINING A NON-ABSORBENT BASE COATING THEREON BONDED TO THE SURFACE OF SAID SHEET AND A THIN HEAT CURED WATER INSOLUBLE RELEASE COATING, ON SAID BASE COATING, FORMED IN SITU OF AN INITIALLY WATER SOLUBLE PHENOLIC ALDEHYDE AND A COMPLEX COMPOUND OF THE WERNER TYPE IN WHICH A TRIVALENT NUCLEAR CHROMIUM ATOM IS COORDINATED WITH AN ACRYCLIC CARBOXYLIC ACID HAVING AT LEAST 12 CARBON ATOMS.
Claim 2
Dependent Claim
89 words
A FLEXIBLE FIBER SHEET HAVING AT LEAST ONE SURFACE ADAPTED TO BE PLACED IN CONTACT WITH A PRESSURE-SENSITIVE ADHESIVE AND READILY RELEASABLE THEREFROM, SAID SURFACE CONTAINING A NON-ABSORBENT BASE COATING THEREON BONDED TO THE SURFACE OF SAID SHEET AND A THIN HEAT CURED WATER INSOLUBLE RELEASE COATING, ON SAID BASE COATING, FORMED IN SITU OF AN INITIALLY WATER SOLUBLE PHENOLIC ALDEHYDE AND A COMPLEX COMPOUND OF THE WERNER TYPE IN WHICH A TRIVALENT NUCLEAR CHROMIUM ATOM IS COORDINATED WITH AN ACRYCLIC CARBOXYLIC ACID HAVING AT LEAST 12 CARBON ATOMS.
References Cited (Backward Citations)
US2147772A
Cited
US2273040A
Cited
US2648614A
Cited
US2730459A
Cited
US2913355A
Cited
US2995467A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |