US3300753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of frequency discrimination
Assignee: Individual
•
Filing: 1964-05-22
•
Granted: 1967-01-24
•
Expires: 1984-05-22
Abstract
No abstract record available.
Inventors
- 👤 P R Rowe Bank Of The South Nat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:52
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/28; G01V2210/00; G01V2210/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
THE METHOD OF RESOLVING A DETECTED VIBRATORY SIGNAL EVENT OF KNOWN FREQUENCY MIXED WITH NOISE ENERGY COMPRISING THE STEPS OF MAKING A FIRST MAGNETIC RECORD OF THE DETECTED ENERGY FUNCTION BY DIRECT RECORDING METHOD, ADJUSTING A PLAYBACK HEAD TO BE SPACED A PREDETERMINED DISTANCE WHICH ACCENTUATES THE SIGNAL FREQUENCY AND DAMPS ALL OTHER FREQUENCIES, PLAYING BACK SAID FIRST RECORD THROUGH SAID PLAYBACK HEAD, AND MAKING A SECONDARY RECORD FROM THE OUTPUT OF SAID PLAYBACK HEAD.
Claim 2
Independent Claim
75 words
THE METHOD OF RESOLVING A DETECTED VIBRATORY SIGNAL EVENT OF KNOWN FREQUENCY MIXED WITH NOISE ENERGY COMPRISING THE STEPS OF MAKING A FIRST MAGNETIC RECORD OF THE DETECTED ENERGY FUNCTION BY DIRECT RECORDING METHOD, ADJUSTING A PLAYBACK HEAD TO BE SPACED A PREDETERMINED DISTANCE WHICH ACCENTUATES THE SIGNAL FREQUENCY AND DAMPS ALL OTHER FREQUENCIES, PLAYING BACK SAID FIRST RECORD THROUGH SAID PLAYBACK HEAD, AND MAKING A SECONDARY RECORD FROM THE OUTPUT OF SAID PLAYBACK HEAD.
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) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |