US3320796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibration generation and measurement
Assignee: Individual
•
Filing: 1963-10-29
•
Granted: 1967-05-23
•
Expires: 1983-10-29
Abstract
No abstract record available.
Inventors
- 👤 Ronald A Darby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:38
CPC Classifications
G; G01; G01M; G01M7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
APPARATUS FOR PRODUCING VIBRATIONS IN A MAGNETIC FLUX-RESPONSIVE SPECIMEN AND FOR MEASURING SAID VIBRATIONS COMPRISING: ELECTROMAGNETIC DRIVE MEANS; REACTION MASS MEANS RIGIDLY COUPLED TO SAID ELECTROMAGNETIC DRIVE UNIT MEANS; RESILIENT VIBRATION ISOLATION MEANS FOR SUSPENDING SAID DRIVE UNIT AND REACTION MASS NEAR AT LEAST ONE PORTION OF THE SPECIMEN THEREBY PROVIDING MAGNETIC FLUX COUPLING BETWEEN SAID DRIVE MEANS AND THE SPECIMEN; AND
Claim 2
Dependent Claim
62 words
APPARATUS FOR PRODUCING VIBRATIONS IN A MAGNETIC FLUX-RESPONSIVE SPECIMEN AND FOR MEASURING SAID VIBRATIONS COMPRISING: ELECTROMAGNETIC DRIVE MEANS; REACTION MASS MEANS RIGIDLY COUPLED TO SAID ELECTROMAGNETIC DRIVE UNIT MEANS; RESILIENT VIBRATION ISOLATION MEANS FOR SUSPENDING SAID DRIVE UNIT AND REACTION MASS NEAR AT LEAST ONE PORTION OF THE SPECIMEN THEREBY PROVIDING MAGNETIC FLUX COUPLING BETWEEN SAID DRIVE MEANS AND THE SPECIMEN; AND
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-22 | 1970-11-21 | 1971-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-22 | 1974-11-21 | 1975-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-22 | 1978-11-21 | 1979-05-23 | $7700.00 | Window Closed / Lapsed |