Patent US3155117A successfully refreshed from Google Patents.
US3155117A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double-walled hollow body for the reception of a hot gaseous medium under pressure
Assignee: Sulzer Escher Wyss AG
•
Filing: 1960-11-21
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Granted: 1964-11-03
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Expires: 1980-11-21
Abstract
No abstract record available.
Inventors
- 👤 Spillmann Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:08
CPC Classifications
F; F16; F16L; F16L59/00; F16L59/14; F16L59/147; G; G21; G21C; G21C11/00; G21C11/08; G21C11/086; 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) | 1967-11-03 | 1968-05-04 | 1968-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-03 | 1972-05-04 | 1972-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-03 | 1976-05-04 | 1976-11-03 | $7700.00 | Window Closed / Lapsed |