US3272302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printing mechanism for typewriters having plural typewheels
Assignee: NEC Corp
•
Filing: 1964-10-12
•
Granted: 1966-09-13
•
Expires: 1984-10-12
Abstract
No abstract record available.
Inventors
- 👤 Segawa Kaoru
- 👤 Ozaki Hideo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:49
CPC Classifications
B; B41; B41J; B41J1/00; B41J1/22; B41J1/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A PRINTING MECHANISM FOR A TYPWRITER COMPRISING A CARRIAGE AND A TYPEHEAD MOUNTED ON SAID CARRIAGE AND MOVABLE THEREON, A PLURALITY OF TYPEWHEELS MOUNTED IN SAID TYPEHEAD, SAID TYPEWHEELS EACH HAVING A PLURALITY OF GROUPS OF TYPE CHARACTERS AT SPACED POSITIONS THEREON, A VERTICALLY DISPOSED CYLINDRICAL SLEEVE PIVOTALLY MOUNTED ON SAID CARRIAGE TO PERMIT BOTH ROTARY AND VERTICAL MOTION THEREOF, SAID TYPEWHEELS BEING SUPPORTED ON SAID CYLINDRICAL SLEEVE, A CENTRAL SHAFT DISPOSED WITHIN SAID CYLINDRICAL SLEEVE AND MOUNTED SO AS TO PERMIT ROTARY MOTION THEREOF, A GEAR MECHANISM BETWEEN SAID CENTRAL SHAFT AND EACH OF SAID TYPEWHEELS FOR TRANSMITTING ROTATION OF SAID CENTRAL SHAFT TO ALL OF THE TYPEWHEELS SIMULTANEOUSLY AT ANY VERTICAL POSITION OF SAID CYLINDRICAL SLEEVE, A ROTARY DRIVING FORCE TRANSMISSION MEANS FOR SAID CYLINDRICAL SLEEVE,
Claim 2
Dependent Claim
128 words
A PRINTING MECHANISM FOR A TYPWRITER COMPRISING A CARRIAGE AND A TYPEHEAD MOUNTED ON SAID CARRIAGE AND MOVABLE THEREON, A PLURALITY OF TYPEWHEELS MOUNTED IN SAID TYPEHEAD, SAID TYPEWHEELS EACH HAVING A PLURALITY OF GROUPS OF TYPE CHARACTERS AT SPACED POSITIONS THEREON, A VERTICALLY DISPOSED CYLINDRICAL SLEEVE PIVOTALLY MOUNTED ON SAID CARRIAGE TO PERMIT BOTH ROTARY AND VERTICAL MOTION THEREOF, SAID TYPEWHEELS BEING SUPPORTED ON SAID CYLINDRICAL SLEEVE, A CENTRAL SHAFT DISPOSED WITHIN SAID CYLINDRICAL SLEEVE AND MOUNTED SO AS TO PERMIT ROTARY MOTION THEREOF, A GEAR MECHANISM BETWEEN SAID CENTRAL SHAFT AND EACH OF SAID TYPEWHEELS FOR TRANSMITTING ROTATION OF SAID CENTRAL SHAFT TO ALL OF THE TYPEWHEELS SIMULTANEOUSLY AT ANY VERTICAL POSITION OF SAID CYLINDRICAL SLEEVE, A ROTARY DRIVING FORCE TRANSMISSION MEANS FOR SAID CYLINDRICAL SLEEVE,
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) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |