Patent US2431927A successfully refreshed from Google Patents.
US2431927A
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US
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Mold for forming precision members
Assignee: Polaroid Corp
•
Filing: 1943-12-31
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Granted: 1947-12-02
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Expires: 1963-12-31
Abstract
No abstract record available.
Inventors
- 👤 Murry N Fairbank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:45
CPC Classifications
B; B29; B29D; B29D11/00; B29D11/00009; B29D11/00413; Y; Y10; Y10S; Y10S425/00; Y10S425/808
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2003465A
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US2075477A
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US2177461A
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US2305945A
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US2304664A
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US2333051A
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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) | 1950-12-01 | 1951-06-02 | 1951-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-01 | 1955-06-02 | 1955-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-01 | 1959-06-02 | 1959-12-02 | $7700.00 | Window Closed / Lapsed |