US2756014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring hangers
Assignee: C H LEIBFRIED MANUFACTURING Corp
•
Filing: 1954-03-15
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Granted: 1956-07-24
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Expires: 1974-03-15
Abstract
No abstract record available.
Inventors
- 👤 Christian H Leibfried
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:11
CPC Classifications
F; F16; F16L; F16L3/00; F16L3/16; F16L3/20; F16L3/205; F16L3/2056; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2142; Y10T74/2154; Y10T74/2158
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CH35877A
Cited
US2129320A
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US2439067A
Cited
US2593502A
Cited
US2480864A
Cited
GB629364A
Cited
US2568149A
Cited
US2664590A
Cited
US2615708A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-24 | 1960-01-23 | 1960-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-24 | 1964-01-23 | 1964-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-24 | 1968-01-23 | 1968-07-24 | $7700.00 | Window Closed / Lapsed |