US2001998A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming high pressure tanks
Assignee: Individual
•
Filing: 1931-02-02
•
Granted: 1935-05-21
•
Expires: 1951-02-02
Abstract
No abstract record available.
Inventors
- 👤 Bart Blasius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:02
CPC Classifications
C; C25; C25D; C25D1/00; C25D1/02; B; B21; B21D; B21D51/00; B21D51/16; B21D51/24; Y; Y10; Y10S; Y10S29/00; Y10S29/012
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1938-05-20 | 1938-11-19 | 1939-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-05-20 | 1942-11-19 | 1943-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-05-20 | 1946-11-19 | 1947-05-21 | $7700.00 | Window Closed / Lapsed |