US3337207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring device
Assignee: Saab Bofors AB
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Filing: 1965-04-06
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Granted: 1967-08-22
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Expires: 1985-04-06
Abstract
No abstract record available.
Inventors
- 👤 Christiansson Carl Mauritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:25
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/02; F16F1/18; F16F3/00; F16F3/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A SPRING DEVICE COMPRISING TWO COMPLEMENTARY BARS OF GENERALLY U-SHAPED CROSS-SECTION AND MADE OF SPRINGY MATERIAL, THE LENGTHWISE EDGES OF THE BRANCHES OF THE BARS FACING EACH OTHER TO DEFINE THEREBETWEEN A HOLLOW ELONGATE BODY OF GENERALLY RECTANGULAR CROSS-SECTION AND OPEN AT BOTH ENDS, FIRST FASTENING MEANS SECURED TO THE RESPECTIVE BRANCH OF EACH OF THE BARS ON ONE OF THE LONG SIDE WALLS OF SAID BODY FOR MOUNTING SAID BODY ON A SUPPORT WALL PARALLEL TO THE PLANE THEREOF,AND SECOND FASTENING MEANS SECURING TOGETHER THE BRANCHES DEFINING THE OPPOSITE LONG SIDE WALL OF SAID BODY, WHEREBY THE DEVICE WILL HAVE SUBSTANTIALLY THE SAME SPRING CONSTANT AT WHATEVER POINT ALONG THE LENGTH THEREOF A LOAD MAY BE APPLIED,
Claim 2
Dependent Claim
118 words
A SPRING DEVICE COMPRISING TWO COMPLEMENTARY BARS OF GENERALLY U-SHAPED CROSS-SECTION AND MADE OF SPRINGY MATERIAL, THE LENGTHWISE EDGES OF THE BRANCHES OF THE BARS FACING EACH OTHER TO DEFINE THEREBETWEEN A HOLLOW ELONGATE BODY OF GENERALLY RECTANGULAR CROSS-SECTION AND OPEN AT BOTH ENDS, FIRST FASTENING MEANS SECURED TO THE RESPECTIVE BRANCH OF EACH OF THE BARS ON ONE OF THE LONG SIDE WALLS OF SAID BODY FOR MOUNTING SAID BODY ON A SUPPORT WALL PARALLEL TO THE PLANE THEREOF,AND SECOND FASTENING MEANS SECURING TOGETHER THE BRANCHES DEFINING THE OPPOSITE LONG SIDE WALL OF SAID BODY, WHEREBY THE DEVICE WILL HAVE SUBSTANTIALLY THE SAME SPRING CONSTANT AT WHATEVER POINT ALONG THE LENGTH THEREOF A LOAD MAY BE APPLIED,
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) | 1970-08-21 | 1971-02-20 | 1971-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-21 | 1975-02-20 | 1975-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-21 | 1979-02-20 | 1979-08-22 | $7700.00 | Window Closed / Lapsed |