US2715449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined lighting and sound absorbing fixture
Assignee: Individual
•
Filing: 1949-12-12
•
Granted: 1955-08-16
•
Expires: 1969-12-12
Abstract
No abstract record available.
Inventors
- 👤 Carl W Lemmerman
- 👤 Cloyd D Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:49
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/34; E04B9/36; E04B9/363; E04B1/00; E04B1/62; E04B1/74; E04B1/82; E04B1/8209; F; F21; F21S; F21S8/00; F21S8/04; F21S8/06; F21V; F21V33/00; F21Y; F21Y2103/00
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-15 | 1959-02-14 | 1959-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-15 | 1963-02-14 | 1963-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-15 | 1967-02-14 | 1967-08-16 | $7700.00 | Window Closed / Lapsed |