Patent US3246363A successfully refreshed from Google Patents.
US2590185A
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Pressure roller apparatus
Assignee: Polaroid Corp
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Filing: 1945-12-01
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Granted: 1952-03-25
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Expires: 1965-12-01
Abstract
No abstract record available.
Inventors
- 👤 Edwin H Land
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:45
CPC Classifications
G; G03; G03D; G03D9/00; G03D9/02; Y; Y10; Y10S; Y10S118/00; Y10S118/15; Y10S411/00; Y10S411/955; Y10S411/956; Y10S411/957; Y10S411/959; Y10T; Y10T74/00; Y10T74/19; Y10T74/1955
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-25 | 1955-09-24 | 1956-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-25 | 1959-09-24 | 1960-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-25 | 1963-09-24 | 1964-03-25 | $7700.00 | Window Closed / Lapsed |