US3000057A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the manufacture of threedimensional objects by selectively heating plastic sheets possessing elastic memory
Assignee: GKN Aerospace Transparency Systems Inc
•
Filing: 1957-05-10
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Granted: 1961-09-19
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Expires: 1977-05-10
Abstract
No abstract record available.
Inventors
- 👤 Swedlow Theodore
- 👤 Sondergaard Svend
- 👤 Swart Jan De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:37
CPC Classifications
B; B29; B29C; B29C59/00; B29C59/18; B29C61/00; B29C61/02; B29K; B29K2025/00; B29K2033/00; B29K2033/04; B29K2067/00; Y; Y10; Y10S; Y10S285/00; Y10S285/909
Claims Analysis
Total Claims: 0
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US2766555A
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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) | 1964-09-18 | 1965-03-20 | 1965-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-18 | 1969-03-20 | 1969-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-18 | 1973-03-20 | 1973-09-19 | $7700.00 | Window Closed / Lapsed |