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US3191740A Expired / Lapsed US ⏱️ 0.0 years remaining

Keylever signal storing mechanism

Assignee: Royal Mcbee Corp
•
Filing: 1962-07-24
•
Granted: 1965-06-29
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Expires: 1982-07-24
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Abstract

No abstract record available.

Inventors

  • 👤 Teddy F Smusz
  • 👤 Edgar G Lizotte
  • 👤 Thomas E Frechette

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 05:53
CPC Classifications
B; B41; B41J; B41J5/00; B41J5/08; B41J5/18; B41J5/22; B41J7/00; B41J7/36; B41J7/42; B41J7/44

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 128 words
IN A TYPEWRITER, THE COMBINATION OF, A PIVOTABLE KEY BAR, AN INTERPOSER ADAPTED TO BE ENGAGED BY SAID KEY UPON DEPRESSION THEREOF AND MOVED THEREBY FROM NORMAL TO ACTIVE POSITION, A NORMALLY DISENGAGED CLUTCH, A CLUTCH ACTIVATOR OPERABLE TO EFFECT ENGAGEMENT OF SAID CLUTCH, A LATCH FOR TRAPPING SAID INTERPOSED IN ACTIVE POSITION, AND FOR OPERATING SAID ACTIVATOR, A PIVOTABLE SPACE BAR, A SECOND NORMALLY DISENGAGED CLUTCH, A SECOND CLUTCH ACTIVATOR ADAPTED TO BE ENGAGED BY SAID SPACE BAR UPON DEPRESSION THEREOF TO EFFECT ENGAGEMENT OF SAID SECOND CLUTCH, AND MEANS RESPONSIVE TO OPERATION OF SAID FIRST ACTIVATOR FOR DELAYING ENGAGEMENT OF SAID SECOND CLUTCH SIGNALLED BY SPACE BAR DEPRESSION FOR A PERIOD OF TIME AFTER DEPRESSION OF SAID SPACE BAR WHEREBY THE SPACE BAR SIGNAL IS STORED.
Claim 2
Dependent Claim 128 words
IN A TYPEWRITER, THE COMBINATION OF, A PIVOTABLE KEY BAR, AN INTERPOSER ADAPTED TO BE ENGAGED BY SAID KEY UPON DEPRESSION THEREOF AND MOVED THEREBY FROM NORMAL TO ACTIVE POSITION, A NORMALLY DISENGAGED CLUTCH, A CLUTCH ACTIVATOR OPERABLE TO EFFECT ENGAGEMENT OF SAID CLUTCH, A LATCH FOR TRAPPING SAID INTERPOSED IN ACTIVE POSITION, AND FOR OPERATING SAID ACTIVATOR, A PIVOTABLE SPACE BAR, A SECOND NORMALLY DISENGAGED CLUTCH, A SECOND CLUTCH ACTIVATOR ADAPTED TO BE ENGAGED BY SAID SPACE BAR UPON DEPRESSION THEREOF TO EFFECT ENGAGEMENT OF SAID SECOND CLUTCH, AND MEANS RESPONSIVE TO OPERATION OF SAID FIRST ACTIVATOR FOR DELAYING ENGAGEMENT OF SAID SECOND CLUTCH SIGNALLED BY SPACE BAR DEPRESSION FOR A PERIOD OF TIME AFTER DEPRESSION OF SAID SPACE BAR WHEREBY THE SPACE BAR SIGNAL IS STORED.

References Cited (Backward Citations)

US2362229A Cited
US2734610A Cited
US2802048A Cited
US2848090A Cited
US2948412A Cited
US2995231A Cited
US3086635A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1968-06-28 1968-12-28 1969-06-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1972-06-28 1972-12-28 1973-06-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1976-06-28 1976-12-28 1977-06-29 $7700.00 Window Closed / Lapsed

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