US3548186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reading lamp shield
Assignee: Individual
•
Filing: 1968-01-24
•
Granted: 1970-12-15
•
Expires: 1988-01-24
Abstract
No abstract record available.
Inventors
- 👤 Walter B Brock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:24
CPC Classifications
F; F21; F21S; F21S6/00; F21S6/002; F21V; F21V1/00; F21V1/14; F21V1/16; F21V1/22; F21V11/00; F21V11/02; F21V11/04; F21V11/08; F21V11/12; F21V11/16; F21V11/18; F21V14/00; F21V14/08; F21V17/00; F21V17/02; F21V1/24; Y; Y10; Y10T; Y10T24/00; Y10T24/15; Y10T24/157
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-14 | 1974-06-15 | 1974-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-14 | 1978-06-15 | 1978-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-14 | 1982-06-15 | 1982-12-15 | $7700.00 | Window Closed / Lapsed |