US3159488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable photographic material and method of making same
Assignee: Keuffel & Essen Co
•
Filing: 1959-09-28
•
Granted: 1964-12-01
•
Expires: 1979-09-28
Abstract
No abstract record available.
Inventors
- 👤 John J O'connor
- 👤 Samuel K Held
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:14
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/7642
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
92 words
THE METHOD OF MAKING A RESIN IMPREGNATED CLOTH OF UNIFORM THICKNESS COMPRISING APPLYING TO A CLOTH BASE A SOLUTION OF RESIN COMPRISING A POLYESTER RESIN WHICH IS THE REACTION PRODUCT OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF ETHYLENICALLY UNSATURATED DICARBOXYLIC ACIDS AND ANHYDRIDES WITH DIHYDRIC ALCOHOLS, AND FURTHER COMPRISING STYRENE, BENZOLPHENYLCARBINOL AND A PEROXIDE, TREATING THE IMPREGNATED CLOTH BASE BY APPLYING A REGENERATED CELLULOSE DERIVATIVE TO THE SURFACES THEREOF, APPLYING ULTRAVIOLET RADIATION, AND HEAT TO THE RESIN IMPREGNATED CLOTH THEREBY CURING THE RESIN RESULTING IN A STABLE RESIN IMPREGNATED CLOTH.
Claim 2
Independent Claim
92 words
THE METHOD OF MAKING A RESIN IMPREGNATED CLOTH OF UNIFORM THICKNESS COMPRISING APPLYING TO A CLOTH BASE A SOLUTION OF RESIN COMPRISING A POLYESTER RESIN WHICH IS THE REACTION PRODUCT OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF ETHYLENICALLY UNSATURATED DICARBOXYLIC ACIDS AND ANHYDRIDES WITH DIHYDRIC ALCOHOLS, AND FURTHER COMPRISING STYRENE, BENZOLPHENYLCARBINOL AND A PEROXIDE, TREATING THE IMPREGNATED CLOTH BASE BY APPLYING A REGENERATED CELLULOSE DERIVATIVE TO THE SURFACES THEREOF, APPLYING ULTRAVIOLET RADIATION, AND HEAT TO THE RESIN IMPREGNATED CLOTH THEREBY CURING THE RESIN RESULTING IN A STABLE RESIN IMPREGNATED CLOTH.
Claim 3
Dependent Claim
47 words
A PHOTOGRAPHIC MATERIAL COMPRISING A BASE FABRIC IMPREGNATED WITH A POLYBUTENE RESIN AND A POLYESTER RESIN, AT LEAST ONE SHEET OF A HYDROPHILIC CELLOPHANE MATERIAL BONDED TO ONE SURFACE OF SAID BASE FABRIC, AND A PHOTOGRAPHIC COATING ON SAID AT LEAST ONE SHEET OF HYDROPHILIC CELLOPHANE MATERIAL.
Claim 4
Dependent Claim
47 words
A PHOTOGRAPHIC MATERIAL COMPRISING A BASE FABRIC IMPREGNATED WITH A POLYBUTENE RESIN AND A POLYESTER RESIN, AT LEAST ONE SHEET OF A HYDROPHILIC CELLOPHANE MATERIAL BONDED TO ONE SURFACE OF SAID BASE FABRIC, AND A PHOTOGRAPHIC COATING ON SAID AT LEAST ONE SHEET OF HYDROPHILIC CELLOPHANE MATERIAL.
References Cited (Backward Citations)
US2400989A
Cited
US2572459A
Cited
US2473528A
Cited
US2760863A
Cited
US2704735A
Cited
US2670288A
Cited
US2784763A
Cited
US2773769A
Cited
US2718476A
Cited
US2873207A
Cited
US2999016A
Cited
US2813043A
Cited
US2965532A
Cited
US2842473A
Cited
US2886464A
Cited
US2875055A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-12-01 | 1968-06-01 | 1968-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-01 | 1972-06-01 | 1972-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-01 | 1976-06-01 | 1976-12-01 | $7700.00 | Window Closed / Lapsed |