Patent US3958254A successfully refreshed from Google Patents.
US3958254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic printer
Assignee: Nidec Precision Corp
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Filing: 1974-11-08
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Granted: 1976-05-18
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Expires: 1994-11-08
Abstract
Abstract An electronic printer comprising a printing head having two straight grooves perpendicular to each other, a pin provided on a carriage and engageable with one of the two grooves, and a plate spring secured to the carriage and engageable with the other of the two grooves to hold the printing head on the carriage, in order to facilitate the attachment of the printing head on the carriage. The plate spring can also hold a flat cable connected to the printing head.
Inventors
- 👤 Katsuhiko Okabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:47
CPC Classifications
B; B41; B41J; B41J25/00; B41J25/304
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
55 words
An electronic printer comprising a carriage, a printing head detachably mounted on said carriage and having two grooves extending perpendicular to each other thereon, a protrusion formed on said carriage and engaged with one of said two grooves, and a plate spring fixed on said carriage and engaged with the other of said two grooves.
Claim 2
Dependent Claim
55 words
An electronic printer comprising a carriage, a printing head detachably mounted on said carriage and having two grooves extending perpendicular to each other thereon, a protrusion formed on said carriage and engaged with one of said two grooves, and a plate spring fixed on said carriage and engaged with the other of said two grooves.
Claim 3
Dependent Claim
44 words
An electronic printer according to claim 1, in which one of said two grooves is formed on one side face of said printing head, and the other of said two grooves is formed on the other side face opposite to said one side face.
Claim 4
Dependent Claim
61 words
An electronic aprinter comprising a printing head having two grooves perpendicular to each other thereon, said grooves being formed on one side face of said printing head, a carriage supporting said printing head and having a protrusion engageable with one of said two grooves, and a plate spring fixed on said carriage and engageable with the other of said two grooves.
Claim 5
Dependent Claim
61 words
An electronic aprinter comprising a printing head having two grooves perpendicular to each other thereon, said grooves being formed on one side face of said printing head, a carriage supporting said printing head and having a protrusion engageable with one of said two grooves, and a plate spring fixed on said carriage and engageable with the other of said two grooves.
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) | 1979-05-18 | 1979-11-17 | 1980-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-18 | 1983-11-17 | 1984-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-18 | 1987-11-17 | 1988-05-18 | $7700.00 | Window Closed / Lapsed |