Patent US2821155A successfully refreshed from Google Patents.
US2821155A
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Process of applying protective coatings
Assignee: RICHARD A FISCH
•
Filing: 1953-12-11
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Granted: 1958-01-28
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Expires: 1973-12-11
Abstract
No abstract record available.
Inventors
- 👤 Peter H Seckel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:13
CPC Classifications
F; F16; F16L; F16L47/00; F16L47/20; F16L47/22; B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; Y; Y10; Y10S; Y10S264/00; Y10S264/71; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49865; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24488
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2037631A
Cited
US1998356A
Cited
US2027962A
Cited
US2223017A
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US2236552A
Cited
US2346613A
Cited
US2491424A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-27 | 1961-07-29 | 1962-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-27 | 1965-07-29 | 1966-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-27 | 1969-07-29 | 1970-01-28 | $7700.00 | Window Closed / Lapsed |