US3355747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring assembly
Assignee: Leggett and Platt Inc
•
Filing: 1965-10-04
•
Granted: 1967-12-05
•
Expires: 1985-10-04
Abstract
No abstract record available.
Inventors
- 👤 Harry H Norman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:51
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/04; A47C27/06; A47C27/068
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
AS A NEW ARTICLE OF MANUFACTURE, ADJACENT ROWS OF HELICAL SPRING WIRE COILS, THE CONSECUTIVE COILS OF EACH ROW HAVING CONNECTIONS WITH EACH OTHER INTEGRALLY AND ALTERNATELLY AT THEIR TOPS AND BOTTOMS, SAID CONNECTIONS BEING CONTINUATIONS OF THE WIRE OF THE COILS, AND PIG TAIL WIRES CONNECTING ADJACENT COILS AT ADJACENT ROWS AT OTHER POINTS THAN AT SAID INTEGRAL CONNECTIONS.
Claim 2
Dependent Claim
60 words
AS A NEW ARTICLE OF MANUFACTURE, ADJACENT ROWS OF HELICAL SPRING WIRE COILS, THE CONSECUTIVE COILS OF EACH ROW HAVING CONNECTIONS WITH EACH OTHER INTEGRALLY AND ALTERNATELLY AT THEIR TOPS AND BOTTOMS, SAID CONNECTIONS BEING CONTINUATIONS OF THE WIRE OF THE COILS, AND PIG TAIL WIRES CONNECTING ADJACENT COILS AT ADJACENT ROWS AT OTHER POINTS THAN AT SAID INTEGRAL CONNECTIONS.
References Cited (Backward Citations)
US208077A
Cited
US248415A
Cited
US1429924A
Cited
US1816238A
Cited
US1898102A
Cited
FR787576A
Cited
US2309164A
Cited
FR1224380A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |