Patent US3224547A successfully refreshed from Google Patents.
US3224547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Typewriter impression control
Assignee: Individual
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Filing: 1963-02-04
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Granted: 1965-12-21
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Expires: 1983-02-04
Abstract
No abstract record available.
Inventors
- 👤 Richard F Betzler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:02
CPC Classifications
B; B41; B41J; B41J7/00; B41J7/02; B41J7/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
169 words
IN A TYPEWRITER, A CYLINDRICAL PLATEN MOUNTED FOR ROTATION ABOUT A FIXED HORIZONTAL AXIS, SAID AXIS LYING IN A VERTICAL PLANE, A TYPE BAR, MEANS SUPPORTING SAID TYPE BAR FOR SWINGING MOVEMENT TOWARD AND AWAY FROM SAID PLATEN, AN ABUTMENT MEMBER POSITIONED IN THE PATH OF MOVEMENT OF SAID TYPE BAR TO LIMIT THE EXTENT OF MOVEMENT OF SAID TYPE BAR TOWARD SAID PLATEN, SAID ABUTMENT MEMBER BEING RESILIENTLY MOUNTED ON SAID SUPPORTING MEANS FOR MOVEMENT IN HORIZONTAL DIRECTION NORMAL TO SAID VERTICAL PLANE, SAID SUPPORTING MEANS INCLUDING THE UPRIGHT SURFACE FACING AWAY FROM SAID PLANE AND BEING DISPOSED BETWEEN SAID ABUTMENT MEMBER AND SAID VERTICAL PLANE, MEANS BIASING SAID ABUTMENT MEMBER TOWARD SAID SURFACE, AND POSITIONING MEANS MNOVABLE IN A DIRECTION PARALLEL TO SAID PLANE FOR MOVING SAID ABUTMENT MEMBER AGAINST THE BIAS OF SAID BIASING MEANS AWAY FROM SAID SURFACE TO POSITION SAID ABUTMENT MEMBER IN SPACED RELATION TO SAID SUPPORTING MEANS AND THEREBY REDUCE THE EXTENT TO WHICH SAID TYPE BAR IS MOVABLE TOWARD SAID PLATEN.
Claim 2
Dependent Claim
169 words
IN A TYPEWRITER, A CYLINDRICAL PLATEN MOUNTED FOR ROTATION ABOUT A FIXED HORIZONTAL AXIS, SAID AXIS LYING IN A VERTICAL PLANE, A TYPE BAR, MEANS SUPPORTING SAID TYPE BAR FOR SWINGING MOVEMENT TOWARD AND AWAY FROM SAID PLATEN, AN ABUTMENT MEMBER POSITIONED IN THE PATH OF MOVEMENT OF SAID TYPE BAR TO LIMIT THE EXTENT OF MOVEMENT OF SAID TYPE BAR TOWARD SAID PLATEN, SAID ABUTMENT MEMBER BEING RESILIENTLY MOUNTED ON SAID SUPPORTING MEANS FOR MOVEMENT IN HORIZONTAL DIRECTION NORMAL TO SAID VERTICAL PLANE, SAID SUPPORTING MEANS INCLUDING THE UPRIGHT SURFACE FACING AWAY FROM SAID PLANE AND BEING DISPOSED BETWEEN SAID ABUTMENT MEMBER AND SAID VERTICAL PLANE, MEANS BIASING SAID ABUTMENT MEMBER TOWARD SAID SURFACE, AND POSITIONING MEANS MNOVABLE IN A DIRECTION PARALLEL TO SAID PLANE FOR MOVING SAID ABUTMENT MEMBER AGAINST THE BIAS OF SAID BIASING MEANS AWAY FROM SAID SURFACE TO POSITION SAID ABUTMENT MEMBER IN SPACED RELATION TO SAID SUPPORTING MEANS AND THEREBY REDUCE THE EXTENT TO WHICH SAID TYPE BAR IS MOVABLE TOWARD SAID PLATEN.
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) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |