Patent US3278176A successfully refreshed from Google Patents.
US3278176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Split compression spring for radial assembly
Assignee: Individual
•
Filing: 1964-10-05
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Granted: 1966-10-11
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Expires: 1984-10-05
Abstract
No abstract record available.
Inventors
- 👤 Abolins Andrew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:18
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
A COIL SPRING FOR LATERAL ASSEMBLY UPON A SHAFT COMPRISED OF TWO SUBSTANTIALLY SEMI-CYLINDRICAL UNITS EACH MADE OF A ROD BENT TO FORM CONTINUOUS CONVOLUTIONS AND MEANS INCLUDED IN AT LEAST ONE OF SAID UNITS TO PREVENT THE CONVOLUTIONS OF BOTH UNITS FROM MESHING WHEN SAID UNITS ARE ASSEMBLED UPON A SHAFT.
Claim 2
Dependent Claim
52 words
A COIL SPRING FOR LATERAL ASSEMBLY UPON A SHAFT COMPRISED OF TWO SUBSTANTIALLY SEMI-CYLINDRICAL UNITS EACH MADE OF A ROD BENT TO FORM CONTINUOUS CONVOLUTIONS AND MEANS INCLUDED IN AT LEAST ONE OF SAID UNITS TO PREVENT THE CONVOLUTIONS OF BOTH UNITS FROM MESHING WHEN SAID UNITS ARE ASSEMBLED UPON A SHAFT.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |