US3473280A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lay-in enclosure
Assignee: K S A Inc
•
Filing: 1967-04-12
•
Granted: 1969-10-21
•
Expires: 1987-04-12
Abstract
No abstract record available.
Inventors
- 👤 Leo G Stahlhut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:47
CPC Classifications
F; F21; F21V; F21V17/00; F21V17/10; F21Y; F21Y2103/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
CA546354A
Cited
US2149385A
Cited
US2191900A
Cited
US2317994A
Cited
US3129895A
Cited
US2978575A
Cited
US3330952A
Cited
US3373275A
Cited
US3358138A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-20 | 1973-04-21 | 1973-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-20 | 1977-04-21 | 1977-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-20 | 1981-04-21 | 1981-10-21 | $7700.00 | Window Closed / Lapsed |