US3700495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for coating substrates with polyethylene and products produced thereby
Assignee: Northrop Grumman Guidance and Electronics Co Inc
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Filing: 1970-03-30
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Granted: 1972-10-24
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Expires: 1990-03-30
Abstract
Abstract THIS INVENTION IS CONCERNED WITH DIRECT COATING OF POLYETHYLENE ON SURFACES, PARTICULARLY HEAT-SENSITIVE SURFACES, BY FORMING A LAYER OF A SOLUTION OF POLYETHYLENE ON THE SURFACE AND THEREAFTER ALLOWING THE SOLVENT TO EVAPORATE. ADDITIONALLY, IT PROVIDES NEW HEAT SENSITIVE SUBSTRATES WITH POLYETHYLENE COATINGS DIRECTLY BONDED TO THE SURFACE OF THE SUBSTRATE.
Inventors
- 👤 Jurgen M Kruse
- 👤 John E Wyman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:37
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/24; B05D7/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |