US2827844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insect excluder
Assignee: Cherry Burrell Corp
•
Filing: 1953-10-21
•
Granted: 1958-03-25
•
Expires: 1973-10-21
Abstract
No abstract record available.
Inventors
- 👤 Robert A Weir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:46
CPC Classifications
A; A01; A01M; A01M1/00; A01M1/06; A01M2200/00; A01M2200/01; A01M2200/012
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US870740A
Cited
US1095499A
Cited
US1643717A
Cited
US1944810A
Cited
US2073744A
Cited
US2150252A
Cited
US2558997A
Cited
US2679202A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-24 | 1961-09-23 | 1962-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-24 | 1965-09-23 | 1966-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-24 | 1969-09-23 | 1970-03-25 | $7700.00 | Window Closed / Lapsed |