Patent US2864884A successfully refreshed from Google Patents.
US2864884A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resistor and spark plug embodying same
Assignee: Motors Liquidation Co
•
Filing: 1954-01-25
•
Granted: 1958-12-16
•
Expires: 1974-01-25
Abstract
No abstract record available.
Inventors
- 👤 William E Counts
- 👤 Robert W Smith
- 👤 Schwartzwalder Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:01
CPC Classifications
H; H04; H04B; H04B15/00; H04B15/02; H04B15/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A RESISTOR COMPRISING THE COMBINATION OF AN IMSULATOR SLEEVE, A METYAL CONDUCTING MEMBER POSITIONED IN SAID SLEEVE, A GLASS CONDUCTING SEAL OVERLYING SAID MEMBER AND HAVING A GAS-TIGHT BOND WITH SAID SLEEVE, A SEMICONDUCTOR OVERLYING SAID REAL AND BEING BONDED THERETO AND TO SAID SLEEVE A SECOND GLASS CONDUCTING SEAL OVERLING SAID SEMI-CONDUCTOR AND BEING BONDED THERETO AND TO SAID SLEEVE, AND A SECOND METAL CONDUCXTING MEMBER IN SAID SLEEVE HAVING GOOD ELECTRICAL CONNECTION WITH SAID SECOND SEAL, SAID SEMI-CONDUCTOR BEING FORMED OF A COMPOSITION COMPRISING 25 TO 40 PARTS PAS 25 TO 75 PARTS SEMI-CONDUCTOR MATERIAL, 3 TO 40 FILLER AND 0 TO 6 SEMI-CONDUCTOR MATERIAL, 0 TO40 PARTS FILLER AND 0 TO 6 STABOLIZED RESISTANCE.
Claim 2
Dependent Claim
117 words
A RESISTOR COMPRISING THE COMBINATION OF AN IMSULATOR SLEEVE, A METYAL CONDUCTING MEMBER POSITIONED IN SAID SLEEVE, A GLASS CONDUCTING SEAL OVERLYING SAID MEMBER AND HAVING A GAS-TIGHT BOND WITH SAID SLEEVE, A SEMICONDUCTOR OVERLYING SAID REAL AND BEING BONDED THERETO AND TO SAID SLEEVE A SECOND GLASS CONDUCTING SEAL OVERLING SAID SEMI-CONDUCTOR AND BEING BONDED THERETO AND TO SAID SLEEVE, AND A SECOND METAL CONDUCXTING MEMBER IN SAID SLEEVE HAVING GOOD ELECTRICAL CONNECTION WITH SAID SECOND SEAL, SAID SEMI-CONDUCTOR BEING FORMED OF A COMPOSITION COMPRISING 25 TO 40 PARTS PAS 25 TO 75 PARTS SEMI-CONDUCTOR MATERIAL, 3 TO 40 FILLER AND 0 TO 6 SEMI-CONDUCTOR MATERIAL, 0 TO40 PARTS FILLER AND 0 TO 6 STABOLIZED RESISTANCE.
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) | 1961-12-15 | 1962-06-16 | 1962-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-15 | 1966-06-16 | 1966-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-15 | 1970-06-16 | 1970-12-16 | $7700.00 | Window Closed / Lapsed |