Patent US4180804A successfully refreshed from Google Patents.
Patent US3744622A successfully refreshed from Google Patents.
US3744622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lunch kit
Assignee: Individual
•
Filing: 1971-05-03
•
Granted: 1973-07-10
•
Expires: 1991-05-03
Abstract
Abstract A lunch kit including a pair of wide mouth insulated bottles connected through a central compartment for dry food with the heat from the insulated bottles keeping the dry food warm.
Inventors
- 👤 E Weaver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:44
CPC Classifications
A; A47; A47J; A47J41/00; A47J41/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
79 words
A lunch kit comprising a generally cylindrical hollow central member, a pair of identical conical housings detachably connected to opposite ends of said central member for closing said central member to form a dry food warming and cooling compartment therein, a vacuum bottle mounted in each of said housings, means for retaining said vacuum bottles in said housings, a stopper for each of said vacuum bottles, and a housing attached cap covering the stopper in each of said housings.
Claim 2
Dependent Claim
79 words
A lunch kit comprising a generally cylindrical hollow central member, a pair of identical conical housings detachably connected to opposite ends of said central member for closing said central member to form a dry food warming and cooling compartment therein, a vacuum bottle mounted in each of said housings, means for retaining said vacuum bottles in said housings, a stopper for each of said vacuum bottles, and a housing attached cap covering the stopper in each of said housings.
Claim 3
Dependent Claim
37 words
A device as claimed in claim 1 wherein said cylindrical member has identical ends, and is internally threaded at each end thereof and said housings are externally threaded to cooperate with the internal threads of said member.
Claim 4
Dependent Claim
22 words
A device as claimed in claim 1 wherein said cylindrical member is provided with an integrally formed carrying handle rigidly secured thereto.
Claim 5
Dependent Claim
33 words
A device as claimed in claim 1 wherein said identical housings are externally threaded at the ends thereof opposite said member and said caps are threaded over the external threads of said housings.
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) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |