US3428503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Three-dimensional reproduction method
Assignee: LLOYD D BECKERLE
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Filing: 1964-10-26
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Granted: 1969-02-18
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Expires: 1984-10-26
Abstract
No abstract record available.
Inventors
- 👤 Lloyd D Beckerle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:27
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/0037; B; B29; B29C; B29C64/00; B29C64/10; B29C64/106; B29C64/124; B29C64/129; C; C23; C23F; C23F1/00; C23F1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1485493A
Cited
US1012762A
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US1980981A
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US2331772A
Cited
US2891339A
Cited
US2854336A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-18 | 1972-08-19 | 1973-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-18 | 1976-08-19 | 1977-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-18 | 1980-08-19 | 1981-02-18 | $7700.00 | Window Closed / Lapsed |