Patent US3485234A successfully refreshed from Google Patents.
Patent US3230024A successfully refreshed from Google Patents.
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 13:31
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
Cited
US3014713A
Cited
US2977172A
Cited
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 |