US2803187A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Duplicating, printing, and punching machine
Assignee: BOBRICH PRODUCTS CORP
•
Filing: 1954-06-07
•
Granted: 1957-08-20
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Expires: 1974-06-07
Abstract
No abstract record available.
Inventors
- 👤 Herbert F Hart
- 👤 Lindberg Roy
- 👤 Robert E Hopp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:01
CPC Classifications
G; G06; G06K; G06K1/00; G06K1/02; B; B26; B26F; B26F1/00; B26F1/38; B26F1/40; B26F1/32; B26F1/36; B41; B41J; B41J3/00; B41J3/38; B44; B44B; B44B5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1108492A
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US1919219A
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US2132412A
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US2134815A
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US2225297A
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US2515124A
Cited
US2589271A
Cited
US2620726A
Cited
US2664815A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-19 | 1961-02-18 | 1961-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-19 | 1965-02-18 | 1965-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-19 | 1969-02-18 | 1969-08-20 | $7700.00 | Window Closed / Lapsed |