US3259890A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Indicating instruments
Assignee: Allard Way Holdings Ltd
•
Filing: 1962-12-12
•
Granted: 1966-07-05
•
Expires: 1982-12-12
Abstract
No abstract record available.
Inventors
- 👤 Wood Francis Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:59
CPC Classifications
G; G01; G01C; G01C19/00; G01C19/02; G01C19/04; G01C19/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
INDICATING INSTRUMENT COMPRISING A BAR OF MAGNETIC MATERIAL, A GIMBAL MEMBER, MEANS PIVOTALLY ROCKABLY INTERATTACHING THE BAR AND GIMBAL MEMBER ON A FIRST AXIS, MEANS FOR SPINNING SAID GIMBAL MEMBER ON A SECOND AXIS NORMAL TO THE FIRST AXIS, AND MAGNETICALLY INDUCTIVE MEANS CO-OPERATIVE WITH SAID BAR TO YIELD ELECTRICAL SIGNALS CORRESPONDING TO ROCKING OSCILLATIONS OF THE BAR WHILST SPINNING.
Claim 2
Dependent Claim
60 words
INDICATING INSTRUMENT COMPRISING A BAR OF MAGNETIC MATERIAL, A GIMBAL MEMBER, MEANS PIVOTALLY ROCKABLY INTERATTACHING THE BAR AND GIMBAL MEMBER ON A FIRST AXIS, MEANS FOR SPINNING SAID GIMBAL MEMBER ON A SECOND AXIS NORMAL TO THE FIRST AXIS, AND MAGNETICALLY INDUCTIVE MEANS CO-OPERATIVE WITH SAID BAR TO YIELD ELECTRICAL SIGNALS CORRESPONDING TO ROCKING OSCILLATIONS OF THE BAR WHILST SPINNING.
References Cited (Backward Citations)
US2208147A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |