US2502278A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Master sheet clamping means for duplicating machines
Assignee: Lamson and Sessions Co
•
Filing: 1948-01-31
•
Granted: 1950-03-28
•
Expires: 1968-01-31
Abstract
No abstract record available.
Inventors
- 👤 Henry G Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:08
CPC Classifications
B; B41; B41L; B41L13/00; B41L13/04; B41L13/08; B41L13/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2141407A
Cited
US2083044A
Cited
US2172876A
Cited
US2220265A
Cited
US2374039A
Cited
US2380744A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-27 | 1953-09-26 | 1954-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-27 | 1957-09-26 | 1958-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-27 | 1961-09-26 | 1962-03-28 | $7700.00 | Window Closed / Lapsed |