US2658266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated coating
Assignee: Harshaw Chemical Co
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Filing: 1952-08-07
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Granted: 1953-11-10
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Expires: 1972-08-07
Abstract
No abstract record available.
Inventors
- 👤 Rose Arthur H Du
- 👤 John D Little
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:17
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/10; C25D5/12; C25D5/14; C25D5/627; Y; Y10; Y10S; Y10S205/00; Y10S205/917; Y10S29/00; Y10S29/03; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/926; Y10S428/9265; Y10S428/927; Y10S428/9335; Y10S428/934; Y10S428/935; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12681; Y10T428/12687; Y10T428/12771; Y10T428/12778; Y10T428/12806; Y10T428/12826; Y10T428/12847; Y10T428/12854; Y10T428/12861; Y10T428/12896; Y10T428/12903; Y10T428/1291; Y10T428/12937; Y10T428/12993
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
142 words
A LAMINATED, METALLIC, BRIGHT, PROTECTIVE COATING ON A METAL BASE OF THE CLASS CONSISTING OF STEEL, COPPER AND BRASS CONSISTING OF A FIRMLY ADHERENT LAYER OF A METAL OF THE CLASS CONSISTING OF NICKEL, COBALT AND MIXTURES THEREOF OF A THICKNESS FROM 0.2 OF A MIL, A LAYER OF THE CLASS CONSISTING OF LEAD, TIN AND SILVER OF A THICKNESS FROM 0.1 TO .7 MIL OVERLYING AND ADHERENT TO SAID LAST MENTIONED LAYER, A FIRMLY ADHERENT LAYER OF ANTIMONY ON SAID LAST MENTIONED LAYER AND HAVING A BRIGHT SURFACE, A FILM OF A METAL OF THE CLASS CONSISTING OF NICKEL, COBALT, ZINC, IRON, WHITE BRASS AND COPPER OF A THICKNESS FROM .001 TO .05 MIL FIRMLY ADHERENT TO SAID BRIGHT SURFACE AND A LAYER OF FULLY BRIGHT, UNBUFFED CHROMIUM OF A THICKNESS FROM .003 TO .03 MIL FIRMLY ADHERENT TO SAID FILM.
References Cited (Backward Citations)
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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) | 1956-11-09 | 1957-05-11 | 1957-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-09 | 1961-05-11 | 1961-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-09 | 1965-05-11 | 1965-11-10 | $7700.00 | Window Closed / Lapsed |