Patent US3380204A successfully refreshed from Google Patents.
US3380204A
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US
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Axially projectable stem device
Assignee: De Havilland Aircraft of Canada Ltd
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Filing: 1965-06-14
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Granted: 1968-04-30
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Expires: 1985-06-14
Abstract
No abstract record available.
Inventors
- 👤 Fry John Arthur
- 👤 Taylor Henry James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:08
CPC Classifications
F; F16; F16H; F16H19/00; F16H19/02; F16H19/06; F16H19/064; H; H01; H01Q; H01Q1/00; H01Q1/08; H01Q1/085; H01Q1/087
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
AN AXIALLY PROJECTABLE STEM DEVICE COMPRISING: A STEM STRIP OF THIN SPRING METAL DEFINING A TUBULAR ELEMENT HAVING OVERLAPPING SIDE EDGES WHEN FREE; A STORAGE CONTAINER FOR SAID STRIP IN THE FORM OF A CUP-LIKE STRUCTURE HAVING AN END WALL, A SIDE WALL AND AN OPEN END THE DEPTH OF SAID CUP STRUCTURE BEING SUBSTANTIALLY EQUAL TO THE WIDTH OF SAID STRIP AT LEAST, AN ANCHORAGE POST IN SAID CUP OF A LENGTH CONFORMING SUBSTANTIALLY TO THE DEPTH THEREOF AND RIGIDLY MOUNTED ECCENTRICALLY WITH RESPECT TO THE SIDE WALL THEREOF TO DEFINE A STORAGE COILING SPACE FOR SAID STRIP THEREIN; MEANS PIVOTALLY CONNECTING ONE END OF SAID STRIP TO SAID POST; AND RELEASABLE MEANS FOR RETAINING THE REMAINDER OF SAID STRIP COILED WITHIN ITSELF WITHIN THE STORAGE SPACE BESIDE SAID POST.
Claim 2
Dependent Claim
131 words
AN AXIALLY PROJECTABLE STEM DEVICE COMPRISING: A STEM STRIP OF THIN SPRING METAL DEFINING A TUBULAR ELEMENT HAVING OVERLAPPING SIDE EDGES WHEN FREE; A STORAGE CONTAINER FOR SAID STRIP IN THE FORM OF A CUP-LIKE STRUCTURE HAVING AN END WALL, A SIDE WALL AND AN OPEN END THE DEPTH OF SAID CUP STRUCTURE BEING SUBSTANTIALLY EQUAL TO THE WIDTH OF SAID STRIP AT LEAST, AN ANCHORAGE POST IN SAID CUP OF A LENGTH CONFORMING SUBSTANTIALLY TO THE DEPTH THEREOF AND RIGIDLY MOUNTED ECCENTRICALLY WITH RESPECT TO THE SIDE WALL THEREOF TO DEFINE A STORAGE COILING SPACE FOR SAID STRIP THEREIN; MEANS PIVOTALLY CONNECTING ONE END OF SAID STRIP TO SAID POST; AND RELEASABLE MEANS FOR RETAINING THE REMAINDER OF SAID STRIP COILED WITHIN ITSELF WITHIN THE STORAGE SPACE BESIDE SAID POST.
References Cited (Backward Citations)
US3144215A
Cited
US3144104A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |