Patent AT89926B successfully refreshed from Google Patents.
Patent US1798677A successfully refreshed from Google Patents.
Patent AT198501B successfully refreshed from Google Patents.
Patent US2499657A successfully refreshed from Google Patents.
Patent US485546A successfully refreshed from Google Patents.
Patent US5207450A successfully refreshed from Google Patents.
Patent US2189043A successfully refreshed from Google Patents.
Patent US1768616A successfully refreshed from Google Patents.
US1768616A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Domestic appliance
Assignee: Delco Light Co
•
Filing: 1923-08-03
•
Granted: 1930-07-01
•
Expires: 1943-08-03
Abstract
No abstract record available.
Inventors
- 👤 Ralph L Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:08
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/02; A47L5/00; A47L5/12; A47L5/22; A47L5/28
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1933-06-30 | 1933-12-30 | 1934-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-06-30 | 1937-12-30 | 1938-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-06-30 | 1941-12-30 | 1942-07-01 | $7700.00 | Window Closed / Lapsed |