Patent US2542290A successfully refreshed from Google Patents.
US2542290A
Expired / Lapsed
US
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Copyholder
Assignee: Individual
•
Filing: 1948-10-15
•
Granted: 1951-02-20
•
Expires: 1968-10-15
Abstract
No abstract record available.
Inventors
- 👤 Michael J Rochford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:56
CPC Classifications
B; B42; B42D; B42D5/00; B42D5/003; B42D5/005; B42D5/008; Y; Y10; Y10T; Y10T24/00; Y10T24/20; Y10T24/201
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1195558A
Cited
US1639883A
Cited
US1593588A
Cited
US1919429A
Cited
US2211437A
Cited
US2204305A
Cited
US2301692A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-19 | 1954-08-21 | 1955-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-19 | 1958-08-21 | 1959-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-19 | 1962-08-21 | 1963-02-20 | $7700.00 | Window Closed / Lapsed |