Patent FR1237836A successfully refreshed from Google Patents.
US2973286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solvent-resistant pressure-sensitive polyacrylic adhesive tape and method of preparing same
Assignee: 3M Co
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Filing: 1956-03-30
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Granted: 1961-02-28
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Expires: 1976-03-30
Abstract
No abstract record available.
Inventors
- 👤 Erwin W Ulrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:51
CPC Classifications
C; C09; C09J; C09J7/00; C09J7/20; C09J7/21; C09J7/22; C09J7/30; C09J7/38; Y; Y10; Y10S; Y10S526/00; Y10S526/931; Y10T; Y10T428/00; Y10T428/28; Y10T428/2852; Y10T428/2878; Y10T428/2891
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A SOLVENT-RESISTANT FLEXIBLE MEMBER HAVING A NORMALLY TACKY AND PRESSURE-SENSITIVE ADHESIVE COATING COMPRISING THE SOLVENT-RESISTANT HEAT-REACTION PRODUCT OF (1) A COPOLYMER OF MONOMERS COMPRISING (A) MONOMERIC ACRYLIC ACID ESTER OF NON-TERTIARY ALKYL ALCOHOL, THE MOLECULES OF WHICH HAVE FROM 1 TO 14 CARBON ATOMS, THE AVERAGE BEING ABOUT 4-12 CARBON ATOMS, AT LEAST A MAJOR PROPORTION OF SAID MOLECULES HAVING A CARBON-TO-CARBON CHAIN OF AT LEAST FOUR CARBON ATOMS TERMINATING AT THE HYDROXYL OXYGEN ATOM, SAID CHAIN CONTAINING AT LEAST ABOUT ONE-HALF THE TOTAL NUMBER OF CARBON ATOMS IN THE MOLECULE, SAID ACRYLIC ACID ESTER BEING FURTHER CHARACTERIZED AS BEING PER SE POLYMERIZABLE TO A STICKY STRETCHABLE
Claim 2
Dependent Claim
107 words
A SOLVENT-RESISTANT FLEXIBLE MEMBER HAVING A NORMALLY TACKY AND PRESSURE-SENSITIVE ADHESIVE COATING COMPRISING THE SOLVENT-RESISTANT HEAT-REACTION PRODUCT OF (1) A COPOLYMER OF MONOMERS COMPRISING (A) MONOMERIC ACRYLIC ACID ESTER OF NON-TERTIARY ALKYL ALCOHOL, THE MOLECULES OF WHICH HAVE FROM 1 TO 14 CARBON ATOMS, THE AVERAGE BEING ABOUT 4-12 CARBON ATOMS, AT LEAST A MAJOR PROPORTION OF SAID MOLECULES HAVING A CARBON-TO-CARBON CHAIN OF AT LEAST FOUR CARBON ATOMS TERMINATING AT THE HYDROXYL OXYGEN ATOM, SAID CHAIN CONTAINING AT LEAST ABOUT ONE-HALF THE TOTAL NUMBER OF CARBON ATOMS IN THE MOLECULE, SAID ACRYLIC ACID ESTER BEING FURTHER CHARACTERIZED AS BEING PER SE POLYMERIZABLE TO A STICKY STRETCHABLE
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) | 1964-02-28 | 1964-08-29 | 1965-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-28 | 1968-08-29 | 1969-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-28 | 1972-08-29 | 1973-02-28 | $7700.00 | Window Closed / Lapsed |