Patent US3409850A successfully refreshed from Google Patents.
US3409850A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Miniature inductance device for communication
Assignee: Individual
•
Filing: 1965-10-28
•
Granted: 1968-11-05
•
Expires: 1985-10-28
Abstract
No abstract record available.
Inventors
- 👤 Oshima Masaomi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:45
CPC Classifications
H; H03; H03H; H03H7/00; H03H7/01; H03H7/0153; H03H7/0161; H03H7/0169; H03H7/0184
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A MINIATURE INDUCTANCE DEVICE FOR COMMUNICATION COMPRISING A MAIN ELEMENT, SAID MAIN ELEMENT CONSISTING OF A BOTTOM PORTION, A PLURALITY OF OPPOSED UPSTANDING PIECES HAVING SCREW-THREADS FORMED IN THE OPPOSED INNER SURFACES THEREOF WHICH HAVE BEEN PROVIDED INTEGRALLY WITH SAID BOTTOM PORTION BY MOLDING AN INSULATING PLASTIC MATERIAL, A MOVABLE POT MAGNETIC CORE MEMBER HAVING SCREW-THREADS TO BE MESHED WITH THOSE OF SAID UPSTANDING PIECES AND A DRUM-TYPE MAGNETIC CORE
Claim 2
Dependent Claim
70 words
A MINIATURE INDUCTANCE DEVICE FOR COMMUNICATION COMPRISING A MAIN ELEMENT, SAID MAIN ELEMENT CONSISTING OF A BOTTOM PORTION, A PLURALITY OF OPPOSED UPSTANDING PIECES HAVING SCREW-THREADS FORMED IN THE OPPOSED INNER SURFACES THEREOF WHICH HAVE BEEN PROVIDED INTEGRALLY WITH SAID BOTTOM PORTION BY MOLDING AN INSULATING PLASTIC MATERIAL, A MOVABLE POT MAGNETIC CORE MEMBER HAVING SCREW-THREADS TO BE MESHED WITH THOSE OF SAID UPSTANDING PIECES AND A DRUM-TYPE MAGNETIC CORE
References Cited (Backward Citations)
US2757346A
Cited
US2669700A
Cited
US2889522A
Cited
US3060394A
Cited
US3092796A
Cited
US3090907A
Cited
US3135937A
Cited
US3271713A
Cited
US3309640A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-05 | 1972-05-06 | 1972-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-05 | 1976-05-06 | 1976-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-05 | 1980-05-06 | 1980-11-05 | $7700.00 | Window Closed / Lapsed |