US3531010A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Underground service wire enclosure
Assignee: Handley Industries Inc
•
Filing: 1968-12-11
•
Granted: 1970-09-29
•
Expires: 1988-12-11
Abstract
No abstract record available.
Inventors
- 👤 Harold E Handley
- 👤 Frank J Perry
- 👤 Richard L Bunnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:33
CPC Classifications
H; H02; H02G; H02G3/00; H02G3/02; H02G3/08; H02G3/18; H02G3/185; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/6966; Y10T137/6991; Y10T137/6995; Y10T137/7021
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US591884A
Cited
US616542A
Cited
US192340A
Cited
US321483A
Cited
US455415A
Cited
US479909A
Cited
US156577A
Cited
US80776A
Cited
US1116752A
Cited
US1168122A
Cited
US2466075A
Cited
US2931383A
Cited
FR1176622A
Cited
US3055970A
Cited
US3346230A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |