Patent US3004288A successfully refreshed from Google Patents.
US3004288A
Expired / Lapsed
US
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Method and apparatus for shaping plastic sheet material
Assignee: Emhart Manufacturing Co
•
Filing: 1955-10-19
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Granted: 1961-10-17
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Expires: 1975-10-19
Abstract
No abstract record available.
Inventors
- 👤 Gardner Edward Boyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:00
CPC Classifications
B; B29; B29B; B29B13/00; B29B13/02; B29B13/023; B29C; B29C51/00; B29C51/18; Y; Y10; Y10S; Y10S264/00; Y10S264/76; Y10S425/00; Y10S425/019
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US414840A
Cited
US1253316A
Cited
US1764215A
Cited
US1880858A
Cited
US2120328A
Cited
US2223321A
Cited
DE706028C
Cited
US2486760A
Cited
US2282423A
Cited
US2468697A
Cited
US2563654A
Cited
US2657426A
Cited
US2674398A
Cited
US2702411A
Cited
US2680882A
Cited
US2694227A
Cited
US2765493A
Cited
US2666951A
Cited
FR1099479A
Cited
GB741040A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-16 | 1965-04-17 | 1965-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-16 | 1969-04-17 | 1969-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-16 | 1973-04-17 | 1973-10-17 | $7700.00 | Window Closed / Lapsed |