US3472715A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of pneumatic tires
Assignee: Bayer AG
•
Filing: 1967-02-21
•
Granted: 1969-10-14
•
Expires: 1987-02-21
Abstract
No abstract record available.
Inventors
- 👤 Erwin Weinbrenner
- 👤 Ulrich Knipp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:26
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/0678; B29C; B29C65/00; B29C65/02; B29C65/06; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/116; B29C66/1162; B29C66/50; B29C66/51; B29C66/54; B29C66/70; B29C66/71; B29C65/04; B29C65/10; B29D30/08; B29D2030/086
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2497226A
Cited
US2925623A
Cited
US2877501A
Cited
US2968575A
Cited
US3097192A
Cited
US3061497A
Cited
US3224916A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-13 | 1973-04-14 | 1973-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-13 | 1977-04-14 | 1977-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-13 | 1981-04-14 | 1981-10-14 | $7700.00 | Window Closed / Lapsed |