US2621988A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bearing and method of making the same
Assignee: Motors Liquidation Co
•
Filing: 1948-05-28
•
Granted: 1952-12-16
•
Expires: 1968-05-28
Abstract
No abstract record available.
Inventors
- 👤 Carson O Donley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:18
CPC Classifications
C; C23; C23C; C23C28/00; C23C28/02; C25; C25D; C25D7/00; C25D7/10; F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/14; F16C2220/00; F16C2220/60; F16C2226/00; F16C2226/50; F16C2226/70; Y; Y10; Y10S; Y10S205/00; Y10S205/917; Y10S384/00; Y10S384/90; Y10S384/912; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/926; Y10S428/9335; Y10S428/934; Y10S428/935; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12681; Y10T428/12701; Y10T428/12771; Y10T428/12861; Y10T428/12882; Y10T428/12896
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
THE METHOD OF MAKING A BEARING WHICH COMPRISES PROVIDING A BEARING BACKING OF STEEL, ELECTRODEPOSITING A FLASH COATING OF A METAL OF THE CLASS CONSISTING OF COPPER AND NICKEL ONTO THE STEEL, SAID FLASH HAVING A THICKNESS WITHIN THE RANGE OF .000005"-.0000100", ELECTRODEPOSITING SILVER ONTO SAID FLASH COATING TO A THICKNESS WITHIN THE RANGE OF ABOUT .005 TO .100, ELECTRODEPOSITING TIN TO A THICKNESS WITH THE RANGE OF .00005"-.00020" ONTO THE SILVER, AND HEAT TREATING THE PRODUCT OF THE PRECEDING STEPS TO A TEMPERATURE WITHIN THE RANGE OF 600* F. FOR AT LEAT ABOUT 10 MINUTES TO DIFFUSE THE TIN INTO THE SILVER TO PROVIDE DESIRED CORROSION RESISTANCE.
Claim 2
Independent Claim
108 words
THE METHOD OF MAKING A BEARING WHICH COMPRISES PROVIDING A BEARING BACKING OF STEEL, ELECTRODEPOSITING A FLASH COATING OF A METAL OF THE CLASS CONSISTING OF COPPER AND NICKEL ONTO THE STEEL, SAID FLASH HAVING A THICKNESS WITHIN THE RANGE OF .000005"-.0000100", ELECTRODEPOSITING SILVER ONTO SAID FLASH COATING TO A THICKNESS WITHIN THE RANGE OF ABOUT .005 TO .100, ELECTRODEPOSITING TIN TO A THICKNESS WITH THE RANGE OF .00005"-.00020" ONTO THE SILVER, AND HEAT TREATING THE PRODUCT OF THE PRECEDING STEPS TO A TEMPERATURE WITHIN THE RANGE OF 600* F. FOR AT LEAT ABOUT 10 MINUTES TO DIFFUSE THE TIN INTO THE SILVER TO PROVIDE DESIRED CORROSION RESISTANCE.
References Cited (Backward Citations)
US2078868A
Cited
US2141201A
Cited
US2266319A
Cited
US2375224A
Cited
US2386951A
Cited
US2431947A
Cited
US2469878A
Cited
US2448369A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-16 | 1956-06-16 | 1956-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-16 | 1960-06-16 | 1960-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-16 | 1964-06-16 | 1964-12-16 | $7700.00 | Window Closed / Lapsed |