Patent US3534594A successfully refreshed from Google Patents.
US3534594A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure control in a vulcanizing test chamber
Assignee: Evonik Operations GmbH
•
Filing: 1968-08-30
•
Granted: 1970-10-20
•
Expires: 1988-08-30
Abstract
No abstract record available.
Inventors
- 👤 Hermann Westlinning
- 👤 Siegfried Wolff
- 👤 Jes Vogt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:09
CPC Classifications
G; G01; G01N; G01N11/00; G01N11/10; G01N11/16; G01N11/162
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2754675A
Cited
US3387490A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-19 | 1974-04-20 | 1974-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-19 | 1978-04-20 | 1978-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-19 | 1982-04-20 | 1982-10-20 | $7700.00 | Window Closed / Lapsed |