US3234657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic compass
Assignee: Individual
•
Filing: 1962-07-13
•
Granted: 1966-02-15
•
Expires: 1982-07-13
Abstract
No abstract record available.
Inventors
- 👤 Walter E Hull
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:18
CPC Classifications
G; G01; G01C; G01C17/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A COMPASS COMPRISING A MAGNETIC BODY, A WIRE-LIKE MEMBER UNDERLYING AND PIVOTALLY SUPPORTING SAID BODY AND HAVING VERTICALLY SPACED PORTIONS, AND A HOUSING FOR SAID BODY HAVING GROOVE MEANS FOR CLOSELY RECEIVING RESPECTIVE MEMBER PORTIONS THEREIN TO HOLD SAID MEMBER AND THUS SAID BODY IN PREDETERMINED POSITIONS WITHIN SAID HOUSING.
Claim 2
Dependent Claim
50 words
A COMPASS COMPRISING A MAGNETIC BODY, A WIRE-LIKE MEMBER UNDERLYING AND PIVOTALLY SUPPORTING SAID BODY AND HAVING VERTICALLY SPACED PORTIONS, AND A HOUSING FOR SAID BODY HAVING GROOVE MEANS FOR CLOSELY RECEIVING RESPECTIVE MEMBER PORTIONS THEREIN TO HOLD SAID MEMBER AND THUS SAID BODY IN PREDETERMINED POSITIONS WITHIN SAID HOUSING.
References Cited (Backward Citations)
US167452A
Cited
US864171A
Cited
GB139920A
Cited
US1972708A
Cited
US2020905A
Cited
US1994998A
Cited
FR788079A
Cited
US2202154A
Cited
US2242126A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |