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Patent US2365637A successfully refreshed from Google Patents.
US2365637A
Expired / Lapsed
US
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Method of shaping thermoplastic domes
Assignee: Rohm and Haas Co
•
Filing: 1942-08-28
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Granted: 1944-12-19
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Expires: 1962-08-28
Abstract
No abstract record available.
Inventors
- 👤 Edward L Helwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:28
CPC Classifications
B; B29; B29C; B29C51/00; B29C51/04; B29C51/06; Y; Y10; Y10S; Y10S264/00; Y10S264/50
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) | 1947-12-19 | 1948-06-19 | 1948-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-12-19 | 1952-06-19 | 1952-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-12-19 | 1956-06-19 | 1956-12-19 | $7700.00 | Window Closed / Lapsed |