US2633630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making perforated plates
Assignee: Standard Thomson Corp
•
Filing: 1945-07-06
•
Granted: 1953-04-07
•
Expires: 1965-07-06
Abstract
No abstract record available.
Inventors
- 👤 John E Woods
- 👤 Joseph J Mcmahon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:44
CPC Classifications
B; B21; B21D; B21D31/00; B21D31/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/496
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1062995A
Cited
US1582596A
Cited
US1967202A
Cited
US2304607A
Cited
US2295078A
Cited
US2260182A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-06 | 1956-10-06 | 1957-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-06 | 1960-10-06 | 1961-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-06 | 1964-10-06 | 1965-04-07 | $7700.00 | Window Closed / Lapsed |