US2864361A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Back plate and harness for aqua-lung
Assignee: Individual
•
Filing: 1956-05-18
•
Granted: 1958-12-16
•
Expires: 1976-05-18
Abstract
No abstract record available.
Inventors
- 👤 Harry B Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:22
CPC Classifications
B; B63; B63C; B63C11/00; B63C11/02; B63C11/30; Y; Y10; Y10S; Y10S224/00; Y10S224/934; Y10T; Y10T24/00; Y10T24/45; Y10T24/45225; Y10T24/45602; Y10T24/45675; Y10T24/45686
Claims Analysis
Total Claims: 0
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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) | 1961-12-15 | 1962-06-16 | 1962-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-15 | 1966-06-16 | 1966-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-15 | 1970-06-16 | 1970-12-16 | $7700.00 | Window Closed / Lapsed |