Patent US2778096A successfully refreshed from Google Patents.
US2778096A
Expired / Lapsed
US
⏱️ 0.0 years remaining
weema
Assignee: —
•
Filing: —
•
Granted: 1957-01-22
•
Expires: 1974-01-22
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:17
CPC Classifications
B; B21; B21D; B21D31/00; B21D31/04; B21D31/046; Y; Y10; Y10T; Y10T29/00; Y10T29/18; Y10T29/49; Y10T29/496; Y10T29/49604
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1080418A
Cited
US1899080A
Cited
GB425317A
Cited
US2225024A
Cited
US2352732A
Cited
US2602519A
Cited
US2664395A
Cited
US2677466A
Cited
US2636572A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-22 | 1960-07-23 | 1961-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-22 | 1964-07-23 | 1965-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-22 | 1968-07-23 | 1969-01-22 | $7700.00 | Window Closed / Lapsed |