Patent US3506779A successfully refreshed from Google Patents.
US3506779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laser beam typesetter
Assignee: AT&T Inc
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Filing: 1967-04-03
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Granted: 1970-04-14
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Expires: 1987-04-03
Abstract
No abstract record available.
Inventors
- 👤 Earl F Brown
- 👤 Charles F Hempstead
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:17
CPC Classifications
G; G06; G06K; G06K15/00; G06K15/02; G06K15/12; G06K15/1228; B; B23; B23K; B23K26/00; B23K26/08; B23K26/082; B41; B41B; B41B19/00; B41C; B41C1/00; B41C1/02; B41C1/04; B41C1/05; B23K2101/00; B23K2101/007; Y; Y10; Y10S; Y10S101/00; Y10S101/37; Y10S430/00; Y10S430/146
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-04-13 | 1973-10-13 | 1974-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-13 | 1977-10-13 | 1978-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-13 | 1981-10-13 | 1982-04-14 | $7700.00 | Window Closed / Lapsed |