US3242505A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring unit
Assignee: SERTA ASSOCIATES Inc
•
Filing: 1964-09-21
•
Granted: 1966-03-29
•
Expires: 1984-09-21
Abstract
No abstract record available.
Inventors
- 👤 Tyhanic Stephen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:18
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/04; A47C27/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A SPRING UNIT COMPRISING A PLURALITY OF SPACED PARALLEL COLUMNS OF COIL SPRINGS, TOP AND BOTTOM OUTER BORDER MEMBERS EACH EXTENDING ALONG AND CONNECTED TO THE OUTER EDGES OF THE COIL SPRINGS IN THE TERMINAL COLUMNS THEREOF AND TO THE OUTER EDGES OF THE COIL SPRINGS AT THE ENDS OF THE INTERMEDIATE COLUMNS THEREOF, TOP AND BOTTOM UNDER BORDER MEMBERS EACH HAVING SIDE EDGE PORTIONS EXTENDING ALONG AND CONNECTED TO THE COIL SPRINGS IN EACH OF TWO COLUMNS WHICH ARE SEPARATED BY A PLURALITY OF COLUMNS, EACH INNER BORDER MEMBER HAVING END PORTIONS FREE TO MOVE LONGITUDINALLY RELATIVE TO SAID COIL SPRINGS, AND A PLURALITY OF CONNECTING ELEMENTS EXTENDING BETWEEN SAID INNER BORDER MEMBER END PORTIONS AND CONNECTING SAID INNER BORDER MEMBER END PORTIONS TOGETHER INTERMEDIATE SAID SIDE EDGE PORTIONS.
Claim 2
Dependent Claim
130 words
A SPRING UNIT COMPRISING A PLURALITY OF SPACED PARALLEL COLUMNS OF COIL SPRINGS, TOP AND BOTTOM OUTER BORDER MEMBERS EACH EXTENDING ALONG AND CONNECTED TO THE OUTER EDGES OF THE COIL SPRINGS IN THE TERMINAL COLUMNS THEREOF AND TO THE OUTER EDGES OF THE COIL SPRINGS AT THE ENDS OF THE INTERMEDIATE COLUMNS THEREOF, TOP AND BOTTOM UNDER BORDER MEMBERS EACH HAVING SIDE EDGE PORTIONS EXTENDING ALONG AND CONNECTED TO THE COIL SPRINGS IN EACH OF TWO COLUMNS WHICH ARE SEPARATED BY A PLURALITY OF COLUMNS, EACH INNER BORDER MEMBER HAVING END PORTIONS FREE TO MOVE LONGITUDINALLY RELATIVE TO SAID COIL SPRINGS, AND A PLURALITY OF CONNECTING ELEMENTS EXTENDING BETWEEN SAID INNER BORDER MEMBER END PORTIONS AND CONNECTING SAID INNER BORDER MEMBER END PORTIONS TOGETHER INTERMEDIATE SAID SIDE EDGE PORTIONS.
References Cited (Backward Citations)
GB202675A
Cited
US2383157A
Cited
US2473706A
Cited
US2589053A
Cited
US2853721A
Cited
US3079615A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |