US3500378A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery-operated barrier light having resilient cushion mounting structure
Assignee: KEITH M JOHNSON
•
Filing: 1965-06-21
•
Granted: 1970-03-10
•
Expires: 1985-06-21
Abstract
No abstract record available.
Inventors
- 👤 Thomas E Pickering
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:26
CPC Classifications
F; F21; F21S; F21S9/00; F21S9/02; F21V; F21V15/00; F21V15/04; F21V23/00; F21V23/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2235024A
Cited
US2304742A
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US2753442A
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US2931026A
Cited
US2918668A
Cited
US2983914A
Cited
US3221300A
Cited
US3266015A
Cited
US3351751A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-09 | 1973-09-08 | 1974-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-09 | 1977-09-08 | 1978-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-09 | 1981-09-08 | 1982-03-10 | $7700.00 | Window Closed / Lapsed |