US2748854A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dog door
Assignee: Individual
•
Filing: 1950-06-23
•
Granted: 1956-06-05
•
Expires: 1970-06-23
Abstract
No abstract record available.
Inventors
- 👤 Harold D Lynch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:34
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/28; E06B7/32; Y; Y10; Y10S; Y10S160/00; Y10S160/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US161419A
Cited
US413010A
Cited
US1312130A
Cited
US734340A
Cited
US1535045A
Cited
US1704945A
Cited
US2041258A
Cited
US2560661A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-05 | 1959-12-05 | 1960-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-05 | 1963-12-05 | 1964-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-05 | 1967-12-05 | 1968-06-05 | $7700.00 | Window Closed / Lapsed |