US3547756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibration damped sandwich systems
Assignee: Hoechst AG
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Filing: 1968-11-18
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Granted: 1970-12-15
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Expires: 1988-11-18
Abstract
No abstract record available.
Inventors
- 👤 Hermann Oberst
- 👤 Joachim Ebigt
- 👤 Guenther Duve
- 👤 Alfred Schommer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:44
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/36; F16F1/3605; C; C08; C08F; C08F255/00; C08F255/02; C08F255/026; C08K; C08K9/00; C08K9/10; E; E04; E04B; E04B1/00; E04B1/62; E04B1/92; E04B1/98; F16F9/00; F16F9/30; F16F9/306; F16F1/373; F16F1/3737; F16F2222/00; F16F2222/02; F16F2228/00; F16F2228/04; F16F2234/00; F16F2234/06; Y; Y10; Y10S; Y10S260/00; Y10S260/46; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31699
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3271188A
Cited
US3218373A
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US3314904A
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US3433724A
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US3399103A
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US3355516A
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US3414638A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-14 | 1974-06-15 | 1974-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-14 | 1978-06-15 | 1978-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-14 | 1982-06-15 | 1982-12-15 | $7700.00 | Window Closed / Lapsed |