Patent US3397503A successfully refreshed from Google Patents.
US3397503A
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Method for constructing pressure vessels
Assignee: Individual
•
Filing: 1965-12-15
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Granted: 1968-08-20
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Expires: 1985-12-15
Abstract
No abstract record available.
Inventors
- 👤 Adler Felix Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:15
CPC Classifications
G; G21; G21C; G21C13/00; G21C13/08; G21C13/093; G21C13/0933; E; E04; E04G; E04G21/00; E04G21/12; E04H; E04H7/00; E04H7/02; E04H7/18; E04H7/20; F; F16; F16H; F16H37/00; F16H37/02; F16H37/06; F16H37/08; E04G2021/127; F16H2702/00; F16H2702/02; F16H2702/04; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-20 | 1972-02-19 | 1972-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-20 | 1976-02-19 | 1976-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-20 | 1980-02-19 | 1980-08-20 | $7700.00 | Window Closed / Lapsed |