US2631531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drum series printing machine
Assignee: Individual
•
Filing: 1948-02-03
•
Granted: 1953-03-17
•
Expires: 1968-02-03
Abstract
No abstract record available.
Inventors
- 👤 James B Pilkington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:27
CPC Classifications
B; B41; B41K; B41K3/00; B41K3/02; B41K3/04; B41K3/08; B41K3/54; B41K3/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1879964A
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US300897A
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US1202194A
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US1100641A
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US1125995A
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US1290509A
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US1376640A
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US1681905A
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US1728826A
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US1803132A
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US1826855A
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US1909141A
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US2443426A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-16 | 1956-09-15 | 1957-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-16 | 1960-09-15 | 1961-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-16 | 1964-09-15 | 1965-03-17 | $7700.00 | Window Closed / Lapsed |