US2807977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Egg candler
Assignee: Individual
•
Filing: 1955-04-18
•
Granted: 1957-10-01
•
Expires: 1975-04-18
Abstract
No abstract record available.
Inventors
- 👤 Mortimer A Zwaaf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:55
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/02; G01N33/08; G01N33/085; Y; Y10; Y10S; Y10S209/00; Y10S209/938
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190207450A
Cited
US843622A
Cited
FR424819A
Cited
US1135101A
Cited
US1360987A
Cited
GB252991A
Cited
US1816483A
Cited
US1875811A
Cited
US2093338A
Cited
US2130437A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-30 | 1961-04-01 | 1961-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-30 | 1965-04-01 | 1965-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-30 | 1969-04-01 | 1969-10-01 | $7700.00 | Window Closed / Lapsed |