US3489833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of vulcanizing molded articles
Assignee: Englebert AG
•
Filing: 1966-01-28
•
Granted: 1970-01-13
•
Expires: 1986-01-28
Abstract
No abstract record available.
Inventors
- 👤 Josef P Lehnen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:35
CPC Classifications
B; B29; B29C; B29C35/00; B29C35/02; B29C35/0288; B29D; B29D30/00; B29D30/06; B29D30/0601; B29C37/00; B29C2037/90; B29K; B29K2021/00; B29L; B29L2030/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1516629A
Cited
US1631943A
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US1500700A
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US1798210A
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US1839877A
Cited
US2066265A
Cited
US3002228A
Cited
US3127460A
Cited
US3329748A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-12 | 1973-07-14 | 1974-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-12 | 1977-07-14 | 1978-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-12 | 1981-07-14 | 1982-01-13 | $7700.00 | Window Closed / Lapsed |