Patent US3137747A successfully refreshed from Google Patents.
US3137747A
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US
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Vacuum forming
Assignee: Beazer East Inc
•
Filing: 1961-09-11
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Granted: 1964-06-16
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Expires: 1981-09-11
Abstract
No abstract record available.
Inventors
- 👤 Samuel M Kline
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:20
CPC Classifications
B; B29; B29C; B29C51/00; B29C51/26; B29C51/42; B29C51/421; B29C51/422; B29C51/423; B29C35/00; B29C35/02; B29C35/08; B29C35/0805; B29C2035/0822; B29K; B29K2105/00; B29K2105/04; Y; Y10; Y10S; Y10S220/00; Y10S220/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2377946A
Cited
US2531539A
Cited
US2550836A
Cited
US2660761A
Cited
US2760233A
Cited
US2942301A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |