US2357904A
Expired / Lapsed
US
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Method and apparatus for installing thermoplastic crystals
Assignee: Individual
•
Filing: 1943-01-05
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Granted: 1944-09-12
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Expires: 1963-01-05
Abstract
No abstract record available.
Inventors
- 👤 Walter L Mulcrone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:11
CPC Classifications
G; G04; G04D; G04D3/00; G04D3/06; G04D3/067; B; B29; B29C; B29C70/00; B29C70/58; Y; Y10; Y10S; Y10S425/00; Y10S425/808; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49867; Y10T29/49869; Y10T29/4987; Y10T29/49872; Y10T29/49876; Y10T29/49908; Y10T29/49915; Y10T29/49917; Y10T29/49918; Y10T29/49938; Y10T29/53; Y10T29/5347
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1947-09-12 | 1948-03-13 | 1948-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-09-12 | 1952-03-13 | 1952-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-09-12 | 1956-03-13 | 1956-09-12 | $7700.00 | Window Closed / Lapsed |