US2699720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Half tone engraving process
Assignee: Individual
•
Filing: 1950-04-13
•
Granted: 1955-01-18
•
Expires: 1970-04-13
Abstract
No abstract record available.
Inventors
- 👤 Winfield S Brooks
- 👤 James P Murphy
- 👤 Edwin M Howey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:53
CPC Classifications
B; B41; B41C; B41C1/00; B41C1/02; B41C1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2179002A
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US2209183A
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US2238601A
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US2442022A
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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) | 1958-01-17 | 1958-07-19 | 1959-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-17 | 1962-07-19 | 1963-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-17 | 1966-07-19 | 1967-01-18 | $7700.00 | Window Closed / Lapsed |