Patent US5630817A successfully refreshed from Google Patents.
US2008218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Moistureproofing
Assignee: Individual
•
Filing: 1933-11-07
•
Granted: 1935-07-16
•
Expires: 1953-11-07
Abstract
No abstract record available.
Inventors
- 👤 Francis P Mccoll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:45
CPC Classifications
B; B31; B31B; B31B50/00; B31B50/74; B31B50/81; B31B50/742
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1938-07-15 | 1939-01-14 | 1939-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-07-15 | 1943-01-14 | 1943-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-07-15 | 1947-01-14 | 1947-07-16 | $7700.00 | Window Closed / Lapsed |