Patent US3034406A successfully refreshed from Google Patents.
US3034406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reflex-reflecting wall structure
Assignee: 3M Co
•
Filing: 1959-03-23
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Granted: 1962-05-15
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Expires: 1979-03-23
Abstract
No abstract record available.
Inventors
- 👤 Eugene L Mckenzie
- 👤 Melvin L Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:55
CPC Classifications
C; C03; C03C; C03C12/00; C03C12/02; G; G03; G03B; G03B21/00; G03B21/54; G03B21/56; G03B21/60; G03B21/602
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1902440A
Cited
US2268537A
Cited
US2575270A
Cited
US2555715A
Cited
US2611819A
Cited
US2727427A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-14 | 1965-11-13 | 1966-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-14 | 1969-11-13 | 1970-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-14 | 1973-11-13 | 1974-05-15 | $7700.00 | Window Closed / Lapsed |