US2795844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a hollow article
Assignee: FL Jacobs Co
•
Filing: 1954-04-21
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Granted: 1957-06-18
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Expires: 1974-04-21
Abstract
No abstract record available.
Inventors
- 👤 Eugene J Liszak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:40
CPC Classifications
B; B22; B22C; B22C9/00; B22C9/22; B22C9/24; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49428; Y10T29/4943; Y10T29/49826; Y10T29/49885; Y10T29/49888; Y10T29/4998; Y10T29/49982; Y10T29/49984
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-17 | 1960-12-17 | 1961-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-17 | 1964-12-17 | 1965-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-17 | 1968-12-17 | 1969-06-18 | $7700.00 | Window Closed / Lapsed |