US2387193A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for sandblasting of ships' hulls
Assignee: Individual
•
Filing: 1944-07-03
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Granted: 1945-10-16
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Expires: 1964-07-03
Abstract
No abstract record available.
Inventors
- 👤 Waitstill H Swenarton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:49
CPC Classifications
B; B24; B24C; B24C1/00; B24C1/08; B24C1/086; B24C3/00; B24C3/02; B24C3/06; B24C3/062; B24C5/00; B24C5/02; B24C7/00; B24C7/0046; B24C7/0084; B63; B63B; B63B59/00; B63B59/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1948-10-15 | 1949-04-16 | 1949-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-10-15 | 1953-04-16 | 1953-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-10-15 | 1957-04-16 | 1957-10-16 | $7700.00 | Window Closed / Lapsed |