US3274452A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Degausser
Assignee: Barnes and Reinecke Inc
•
Filing: 1963-03-12
•
Granted: 1966-09-20
•
Expires: 1983-03-12
Abstract
No abstract record available.
Inventors
- 👤 Lewis G Landes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:17
CPC Classifications
H; H01; H01F; H01F13/00; C; C07; C07D; C07D475/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
36 words
APPARATUS FOR CONTROLLEDLY DEGAUSSING A MAGNETIC ELEMENT, COMPRISING: A DEGAUSSER COIL; AND MEANS FOR PROVIDING IN SAID DEGAUSSER COIL A CURRENT OF SERIATIM INCREASING-MAXIMUM-AMPLITUDE, DAMPED SINE WAVE PULSES WITH A FINITE TIME INTERVAL BETWEEN SAID PULSES.
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) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |