Patent US2887405A successfully refreshed from Google Patents.
US2887405A
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US
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Pheral coating with nitrogen resin primer
Assignee: Wyeth Holdings LLC
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Filing: 1956-11-08
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Granted: 1959-05-19
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Expires: 1976-11-08
Abstract
No abstract record available.
Inventors
- 👤 William M Wooding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:07
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/91; G03C1/93; B; B05; B05D; B05D3/00; B05D3/10; B32; B32B; B32B15/00; B32B15/04; B32B15/08; B05D1/00; B05D1/18; B05D1/185; B05D3/101; B05D3/102; B05D3/104; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31688; Y10T428/31692
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A PROCESS FOR IMPROVING A BASE COMPRISING A NONABSORBENT SMOOTH SURFACE FOR SUBSEQUENTLY APPLIED TOPCOAT MATERIAL WHICH COMPRISES ADSORBING ON SAID SURFACE FROM AQUEOUS SOLUTION A RESINOUS ORGANIC NITROGEN POLYMER HAVING A MOLECULAR WEIGHT IN EXCESS OF 1,000 IN SMALL BUT EFFECTIVE AMOUNT AS ANCHORING AGENT, THE RATIO
Claim 2
Dependent Claim
48 words
A PROCESS FOR IMPROVING A BASE COMPRISING A NONABSORBENT SMOOTH SURFACE FOR SUBSEQUENTLY APPLIED TOPCOAT MATERIAL WHICH COMPRISES ADSORBING ON SAID SURFACE FROM AQUEOUS SOLUTION A RESINOUS ORGANIC NITROGEN POLYMER HAVING A MOLECULAR WEIGHT IN EXCESS OF 1,000 IN SMALL BUT EFFECTIVE AMOUNT AS ANCHORING AGENT, THE RATIO
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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) | 1962-05-18 | 1962-11-17 | 1963-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-18 | 1966-11-17 | 1967-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-18 | 1970-11-17 | 1971-05-19 | $7700.00 | Window Closed / Lapsed |