Patent US3512499A successfully refreshed from Google Patents.
US3512499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Linear scale instrument with variable speed tape drive
Assignee: McGraw Edison Co
•
Filing: 1968-01-22
•
Granted: 1970-05-19
•
Expires: 1988-01-22
Abstract
No abstract record available.
Inventors
- 👤 William G Runde
- 👤 Arthur J Bromley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:03
CPC Classifications
G; G01; G01D; G01D13/00; G01D13/02; G01D13/04; G01D13/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US743531A
Cited
GB501545A
Cited
US2326835A
Cited
US2526610A
Cited
US2524745A
Cited
US2642746A
Cited
US2941400A
Cited
US3117312A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |