US3230024A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-leveling device
Assignee: AMF Inc
•
Filing: 1963-10-11
•
Granted: 1966-01-18
•
Expires: 1983-10-11
Abstract
No abstract record available.
Inventors
- 👤 Gika Konstantin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:04
CPC Classifications
B; B65; B65G; B65G1/00; B65G1/02; B65G1/04; B65G1/06; B65G1/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A SELF-LEVELLING, STORING AND DISPENSING APPARATUS COMPRISING, A HOUSING, A HELICAL COMPRESSION SPRING, HAVING A PREDETERMINED CONSTANT, SUPPORTED IN SAID HOUSING AND A CARRIER MOUNTED ON THE UPPER END OF SAID COMPRESSION SPRING FOR SUPPORTING MATERIAL STORED IN SAID HOUSING, A TUBULAR SPRING GUIDANCE MEMBER MOUNTED COAXIALLY WITHIN SAID HELICAL SPRING, AND CLAMPING MEANS FOR FASTENING AT LEAST A PORTION OF SAID SPRING TO SAID TUBULAR MEMBER THEREBY INACTIVATING SAID SPRING PORTION AND VARYING THE CONSTANT OF SAID SPRING.
Claim 2
Dependent Claim
79 words
A SELF-LEVELLING, STORING AND DISPENSING APPARATUS COMPRISING, A HOUSING, A HELICAL COMPRESSION SPRING, HAVING A PREDETERMINED CONSTANT, SUPPORTED IN SAID HOUSING AND A CARRIER MOUNTED ON THE UPPER END OF SAID COMPRESSION SPRING FOR SUPPORTING MATERIAL STORED IN SAID HOUSING, A TUBULAR SPRING GUIDANCE MEMBER MOUNTED COAXIALLY WITHIN SAID HELICAL SPRING, AND CLAMPING MEANS FOR FASTENING AT LEAST A PORTION OF SAID SPRING TO SAID TUBULAR MEMBER THEREBY INACTIVATING SAID SPRING PORTION AND VARYING THE CONSTANT OF SAID SPRING.
References Cited (Backward Citations)
US2883251A
Cited
US2896940A
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US3014713A
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US2977172A
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US3028156A
Cited
US3157392A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |