Patent US3173889A successfully refreshed from Google Patents.
US3173889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesives
Assignee: United Shoe Machinery Corp
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Filing: 1960-06-15
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Granted: 1965-03-16
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Expires: 1980-06-15
Abstract
No abstract record available.
Inventors
- 👤 Edwin E Sylvester
- 👤 Sumner H Peck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:13
CPC Classifications
C; C08; C08G; C08G8/00; C08G8/28; C09; C09D; C09D161/00; C09D161/04; C09D161/06; C09D161/14; C09J; C09J129/00; C09J129/10; C09J161/00; C09J161/04; C09J161/06; C09J161/14; C08L; C08L2666/00; C08L2666/02; C08L2666/04; C08L2666/14
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
145 words
A LIQUID ADHESIVE FOR FORMING A NON-TACKY HEAT-, AND SOLVENT-ACTIVATABLE FILM COMPRISING A VOLATILE ORGANIC SOLVENT SOLUTION OF POLYVINYL ETHYL ETHER AND FROM ABOUT 20% TO ABOUT 200% BY WEIGHT BASED ON THE WEIGHT OF THE POLYVINYL ETHYL ETHER OF A SOLVENT SOLUBLE, SUBSTANTIALLY INFUSIBLE PRODUCT OF REACTING, BEFORE COMBINATION WITH SAID POLYVINYL ALKYL EHTER, MAGNESIUM OXIDE AND A HEAT ADVANCING OIL-SOLUBLE ALKALI-CATALYZED CONDENSATE OF A PARA-SUBSTITUTED PHENOL, OF WHICH THE SUBSTITUENT GROUP IS SELECTED FROM THE GROUP CONSISTING OF ALKYL AND ARYL HYDROCARBONS CONTAINING FROM 3 TO 6 CARBON ATOMS, AND FORMALDEHYDE IN PROPORTION GREATER THAN ONE MOL OF FORMALDEHYDE TO ONE MOL OF SUBSTITUTED PHENOL, SAID PRODUCT CONTAINING FROM 7.5% TO ABOUT 9% BY WEIGHT OF COMBINED MAGNESIUM CALCULATED AS MAGNESIUM OXIDE AND SAID SOLVENT BEING SELECTED FROM THE GROUP CONSISTING OF ESTERS, KETONES AND ALIPHATIC HYDROCARBONS AND MIXTURES OF THESE WITH ALCOHOL.
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) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |