Patent US1339675A successfully refreshed from Google Patents.
Patent US2902855A successfully refreshed from Google Patents.
Patent US1362361A successfully refreshed from Google Patents.
Patent US4281344A successfully refreshed from Google Patents.
Patent US3477609A successfully refreshed from Google Patents.
US3477609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic box having snap cover with seal
Assignee: General Dynamics Corp
•
Filing: 1968-10-24
•
Granted: 1969-11-11
•
Expires: 1988-10-24
Abstract
No abstract record available.
Inventors
- 👤 David W Winkler Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:10
CPC Classifications
H; H02; H02G; H02G3/00; H02G3/02; H02G3/08; H02G3/088
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-10 | 1973-05-12 | 1973-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-10 | 1977-05-12 | 1977-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-10 | 1981-05-12 | 1981-11-11 | $7700.00 | Window Closed / Lapsed |