US2990294A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Primer coating compositions
Assignee: 3M Co
•
Filing: 1957-02-25
•
Granted: 1961-06-27
•
Expires: 1977-02-25
Abstract
No abstract record available.
Inventors
- 👤 Lamar E Long
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:46
CPC Classifications
C; C09; C09D; C09D127/00; C09D127/02; C09D127/12; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/269; Y10T428/31504; Y10T428/31678; Y10T428/31692
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A COMPOSITION COMPRISING A VOLATILE ORGANIC DISPERSING VEHICLE, A SOLID PERFLUOROHALOOLEFIN POLYMER SELECTED FROM THE GROUP CONSISTING OF CHLOROTRIFLUOROETHYLENE HOMOPOLYMER, CHLOROTRIFLUOROETHYLENE - VINYLIDENE FLUORIDE COPOLYMER, AND PERFLUOROPROPENE - VINYLIDENE FLUORIDE COPOLYMER, AND A COBALTOUS OXIDE FRIT, SAID COMPOSITION CONTAINING BETWEEN ABOUT 5 AND ABOUT 60 PARTS BY WEIGHT OF COBALTOUS OXIDE FRIT PER 100 PARTS BY WEIGHT OF PERFLUOROHALOOLEFIN POLYMER.
Claim 2
Dependent Claim
60 words
A COMPOSITION COMPRISING A VOLATILE ORGANIC DISPERSING VEHICLE, A SOLID PERFLUOROHALOOLEFIN POLYMER SELECTED FROM THE GROUP CONSISTING OF CHLOROTRIFLUOROETHYLENE HOMOPOLYMER, CHLOROTRIFLUOROETHYLENE - VINYLIDENE FLUORIDE COPOLYMER, AND PERFLUOROPROPENE - VINYLIDENE FLUORIDE COPOLYMER, AND A COBALTOUS OXIDE FRIT, SAID COMPOSITION CONTAINING BETWEEN ABOUT 5 AND ABOUT 60 PARTS BY WEIGHT OF COBALTOUS OXIDE FRIT PER 100 PARTS BY WEIGHT OF PERFLUOROHALOOLEFIN POLYMER.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-26 | 1964-12-26 | 1965-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-26 | 1968-12-26 | 1969-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-26 | 1972-12-26 | 1973-06-27 | $7700.00 | Window Closed / Lapsed |