US2754752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid control for duplicator machine
Assignee: Old Town Corp
•
Filing: 1952-07-02
•
Granted: 1956-07-17
•
Expires: 1972-07-02
Abstract
No abstract record available.
Inventors
- 👤 Grant R Robinson
- 👤 Paul T Trueman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:33
CPC Classifications
B; B41; B41L; B41L7/00; B41L7/02; B41L7/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US128473A
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US808089A
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US1598434A
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US1685147A
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US1837203A
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US2034209A
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US2036972A
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US2129179A
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US2163529A
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US2172115A
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US2237548A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-17 | 1960-01-16 | 1960-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-17 | 1964-01-16 | 1964-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-17 | 1968-01-16 | 1968-07-17 | $7700.00 | Window Closed / Lapsed |