Patent US2352876A successfully refreshed from Google Patents.
US2352876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible conduit
Assignee: Norristown Magnesia & Asbestos
•
Filing: 1942-07-25
•
Granted: 1944-07-04
•
Expires: 1962-07-25
Abstract
No abstract record available.
Inventors
- 👤 Ladd L Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:08
CPC Classifications
F; F16; F16L; F16L9/00; F16L9/003; F16L59/00; F16L59/12; Y; Y10; Y10S; Y10S454/00; Y10S454/903
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) | 1947-07-04 | 1948-01-03 | 1948-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-07-04 | 1952-01-03 | 1952-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-07-04 | 1956-01-03 | 1956-07-04 | $7700.00 | Window Closed / Lapsed |