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US2602452A
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Assignee: Individual
•
Filing: 1950-04-10
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Granted: 1952-07-08
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Expires: 1970-04-10
Abstract
No abstract record available.
Inventors
- 👤 Joseph J Donato
- 👤 Frederick L Hardin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 02:25
CPC Classifications
B; B42; B42D; B42D17/00; B42D17/005; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44291; Y10T24/4453
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1805191A
Cited
CH38906A
Cited
CH68883A
Cited
US1655017A
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FR718149A
Cited
US2323123A
Cited
CH228217A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-08 | 1956-01-07 | 1956-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-08 | 1960-01-07 | 1960-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-08 | 1964-01-07 | 1964-07-08 | $7700.00 | Window Closed / Lapsed |