US1681736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Therapeutic lamp
Assignee: Burdick Corp
•
Filing: 1926-07-26
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Granted: 1928-08-21
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Expires: 1946-07-26
Abstract
No abstract record available.
Inventors
- 👤 Andrew A Kull
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:31
CPC Classifications
A; A61; A61N; A61N5/00; A61N5/06; A61N2005/0635; A61N2005/0643; A61N2005/0644
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1931-08-21 | 1932-02-20 | 1932-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-08-21 | 1936-02-20 | 1936-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-08-21 | 1940-02-20 | 1940-08-21 | $7700.00 | Window Closed / Lapsed |