US3416852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Functionally combined microscope and carrying case
Assignee: AC Gilbert Co
•
Filing: 1964-05-18
•
Granted: 1968-12-17
•
Expires: 1984-05-18
Abstract
No abstract record available.
Inventors
- 👤 Bernard H Goldbeck
- 👤 Jr William L Effinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:06
CPC Classifications
G; G02; G02B; G02B21/00; G02B21/24
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2040066A
Cited
US2184750A
Cited
US2214367A
Cited
US2551780A
Cited
US2718447A
Cited
GB819900A
Cited
US3019486A
Cited
US3186574A
Cited
US3307896A
Cited
US3324997A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-17 | 1972-06-17 | 1972-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-17 | 1976-06-17 | 1976-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-17 | 1980-06-17 | 1980-12-17 | $7700.00 | Window Closed / Lapsed |