US3302877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring mounting for keys
Assignee: TA Triumph-Adler GmbH
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Filing: 1965-04-13
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Granted: 1967-02-07
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Expires: 1985-04-13
Abstract
No abstract record available.
Inventors
- 👤 Stuiber Walter
- 👤 Decker Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:29
CPC Classifications
B; B41; B41J; B41J5/00; B41J5/08; B41J5/26
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
134 words
IN A KEYBOARD OPERATED MACHINE, IN COMBINATION, KEY MEANS OPERABLE TO MOVE TO AN ACTUATED POSITION; SUPPORTING MEANS; SPRING MEANS HAVING A FIRST PORTION ABUTTING SAID KEY MEANS, A SECOND PORTION ABUTTING SAID SUPPORTING MEANS, AND A THIRD PORTION DISPLACED WHEN SAID KEY MEANS MOVE TOWARD SAID ACTUATING POSITION AND DISPLACE SAID FIRST PORTION; AND MANUALLY OPERATED CONTROL MEANS SETTABLE TO A PLURALITY OF CONTROL POSITIONS FOR ENGAGING SAID DISPLACED THIRD PORTION IN DIFFERENT DISPLACED POSITIONS AND FOR DEACTIVATING A PORTION OF SAID SPRING MEANS INTERMEDIATE SAID SECOND AND THIRD PORTIONS THEREOF BY LIMITING MOVEMENT OF SAID THIRD PORTION SO THAT A GREATER SPRING FORCE ACTS ON SAID KEY MEANS AFTER ENGAGEMENT OF SAID THIRD PORTION BY SAID CONTROL MEANS, SAID GREATER SPRING FORCE BEING DIFFERENT FOR DIFFERENT CONTROL POSITIONS OF SAID CONTROL MEANS.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |