Patent US3034503A successfully refreshed from Google Patents.
US3034503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diving equipment
Assignee: Individual
•
Filing: 1955-08-05
•
Granted: 1962-05-15
•
Expires: 1975-08-05
Abstract
No abstract record available.
Inventors
- 👤 Jr Ralph S Mackay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:39
CPC Classifications
B; B63; B63C; B63C11/00; B63C11/02; B63C11/18; B63C11/22
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2300273A
Cited
DE877868C
Cited
US2918061A
Cited
US2944544A
Cited
US2896616A
Cited
US2989062A
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 |