US3023830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination loudspeaker mounting and lamp
Assignee: BENJAMIN W LOWELL
•
Filing: 1958-03-21
•
Granted: 1962-03-06
•
Expires: 1978-03-21
Abstract
No abstract record available.
Inventors
- 👤 Hammes Josef Johann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:22
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/02; H04R1/028; F; F21; F21V; F21V33/00; F21V33/0004; F21V33/0052; F21V33/0056
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
FR582378A
Cited
US1719437A
Cited
US1746894A
Cited
US2096192A
Cited
US2541946A
Cited
US2819773A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-05 | 1965-09-04 | 1966-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-05 | 1969-09-04 | 1970-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-05 | 1973-09-04 | 1974-03-06 | $7700.00 | Window Closed / Lapsed |