US3534249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Current regulating network with overload protection
Assignee: AMSTAR TECHNICAL PRODUCTS COMPANY Inc A CORP OF DE
•
Filing: 1967-07-05
•
Granted: 1970-10-13
•
Expires: 1987-07-05
Abstract
No abstract record available.
Inventors
- 👤 Daniel L Neill
- 👤 Robert S Podlewski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:24
CPC Classifications
H; H02; H02H; H02H3/00; H02H3/08; H02H3/087; G; G05; G05F; G05F1/00; G05F1/10; G05F1/46; G05F1/56; G05F1/565; G05F1/569; G05F1/573
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2832035A
Cited
US3074006A
Cited
US3090905A
Cited
US3182246A
Cited
US3434038A
Cited
US3450319A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-12 | 1974-04-13 | 1974-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-12 | 1978-04-13 | 1978-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-12 | 1982-04-13 | 1982-10-13 | $7700.00 | Window Closed / Lapsed |