US2494642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrugating mold
Assignee: Libbey Owens Ford Glass Co
•
Filing: 1945-06-12
•
Granted: 1950-01-17
•
Expires: 1965-06-12
Abstract
No abstract record available.
Inventors
- 👤 John C Case
- 👤 Leonard S Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:43
CPC Classifications
B; B32; B32B; B32B27/00; B29; B29C; B29C33/00; B29C53/00; B29C53/22; B29C53/24; B29C53/28; B29C53/285; B31; B31F; B31F1/00; B31F1/20; B31F1/24; B31F1/30; B29K; B29K2105/00; B29K2105/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
44 words
A MOLD FOR CORRUGATING RESIN IMPREGNATED FABRIC COMPRISING A GRID OF PARALLEL RIGIDLY SUPPORTED HEXAGONAL RODS ORIENTED TO PRESENT A FLAT UPPER SURFACE, A SECOND FLEXIBLE GRID OF PARALLELLY DISPOSED, RESILIENTLY SPACED HEXAGONAL RODS ORIENTED TO PRESENT A FLAT SURFACE, THE RODS OF EACH
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-16 | 1953-07-18 | 1954-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-16 | 1957-07-18 | 1958-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-16 | 1961-07-18 | 1962-01-17 | $7700.00 | Window Closed / Lapsed |