US3058035A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ground sensing and protective unit
Assignee: Individual
•
Filing: 1959-10-26
•
Granted: 1962-10-09
•
Expires: 1979-10-26
Abstract
No abstract record available.
Inventors
- 👤 Chester W Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:01
CPC Classifications
H; H02; H02H; H02H3/00; H02H3/16; H02H3/17
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2071860A
Cited
US2473344A
Cited
US2460860A
Cited
US2691747A
Cited
US2842719A
Cited
US2844765A
Cited
GB805456A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-08 | 1966-04-09 | 1966-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-08 | 1970-04-09 | 1970-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-08 | 1974-04-09 | 1974-10-09 | $7700.00 | Window Closed / Lapsed |